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Installation Instructions
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platform different from the build platform, you should specify the
"host" platform (i.e., that on which the generated programs will
eventually be run) with `--host=TYPE'.
Sharing Defaults
================
If you want to set default values for `configure' scripts to share, you
can create a site shell script called `config.site' that gives default
values for variables like `CC', `cache_file', and `prefix'.
`configure' looks for `PREFIX/share/config.site' if it exists, then
`PREFIX/etc/config.site' if it exists. Or, you can set the
`CONFIG_SITE' environment variable to the location of the site script.
A warning: not all `configure' scripts look for a site script.
Defining Variables
==================
Variables not defined in a site shell script can be set in the
environment passed to `configure'. However, some packages may run
configure again during the build, and the customized values of these
variables may be lost. In order to avoid this problem, you should set
them in the `configure' command line, using `VAR=value'. For example:
./configure CC=/usr/local2/bin/gcc
causes the specified `gcc' to be used as the C compiler (unless it is
overridden in the site shell script).
Unfortunately, this technique does not work for `CONFIG_SHELL' due to
an Autoconf bug. Until the bug is fixed you can use this workaround:
CONFIG_SHELL=/bin/bash /bin/bash ./configure CONFIG_SHELL=/bin/bash
`configure' Invocation
======================
`configure' recognizes the following options to control how it operates.
`--help'
`-h'
Print a summary of the options to `configure', and exit.
`--version'
`-V'
Print the version of Autoconf used to generate the `configure'
script, and exit.
`--cache-file=FILE'
Enable the cache: use and save the results of the tests in FILE,
traditionally `config.cache'. FILE defaults to `/dev/null' to
disable caching.
`--config-cache'
`-C'
Alias for `--cache-file=config.cache'.
`--quiet'
`--silent'
`-q'
Do not print messages saying which checks are being made. To
suppress all normal output, redirect it to `/dev/null' (any error
messages will still be shown).
`--srcdir=DIR'
Look for the package's source code in directory DIR. Usually
`configure' can determine that directory automatically.
`configure' also accepts some other, not widely useful, options. Run
`configure --help' for more details.

0
MAINTAINERS Normal file
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21
Makefile.am Normal file
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@@ -0,0 +1,21 @@
# Makefile.am
ACLOCAL_AMFLAGS = -I config
LIBTOOL_DEPS = @LIBTOOL_DEPS@
SUBDIRS = src
DIST_SUBDIRS = src
EXTRA_DIST = \
autogen.sh \
CONTRIBUTING \
MAINTAINERS
libtool: $(LIBTOOL_DEPS)
$(SHELL) ./config.status libtool
install-data-local:
$(MKDIR_P) $(DESTDIR)$(LXCPATH)
$(MKDIR_P) $(DESTDIR)$(localstatedir)/cache/lxc
ChangeLog::
@touch ChangeLog

0
NEWS Normal file
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0
README Normal file
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4
README.md Normal file
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@@ -0,0 +1,4 @@
# lua-lxc
This repository provides lua bindings for the [LXC](https://github.com/lxc/lxc)
container API.

31
autogen.sh Executable file
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@@ -0,0 +1,31 @@
#!/bin/sh
#
# lxc: linux Container library
#
# (C) Copyright IBM Corp. 2007, 2008
#
# Authors:
# Daniel Lezcano <daniel.lezcano at free.fr>
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
#
# This library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
set -x
test -d autom4te.cache && rm -rf autom4te.cache
libtoolize || exit 1
aclocal -I config || exit 1
autoheader || exit 1
autoconf || exit 1
automake --add-missing --copy || exit 1

137
config/acinclude.m4 Normal file
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@@ -0,0 +1,137 @@
dnl as-ac-expand.m4 0.2.0
dnl autostars m4 macro for expanding directories using configure's prefix
dnl thomas@apestaart.org
dnl
dnl AS_AC_EXPAND(VAR, CONFIGURE_VAR)
dnl example
dnl AS_AC_EXPAND(SYSCONFDIR, $sysconfdir)
dnl will set SYSCONFDIR to /usr/local/etc if prefix=/usr/local
AC_DEFUN([AS_AC_EXPAND],
[
EXP_VAR=[$1]
FROM_VAR=[$2]
dnl first expand prefix and exec_prefix if necessary
prefix_save=$prefix
exec_prefix_save=$exec_prefix
dnl if no prefix given, then use /usr/local, the default prefix
if test "x$prefix" = "xNONE"; then
prefix="$ac_default_prefix"
fi
dnl if no exec_prefix given, then use prefix
if test "x$exec_prefix" = "xNONE"; then
exec_prefix=$prefix
fi
full_var="$FROM_VAR"
dnl loop until it doesn't change anymore
while true; do
new_full_var="`eval echo $full_var`"
if test "x$new_full_var" = "x$full_var"; then break; fi
full_var=$new_full_var
done
dnl clean up
full_var=$new_full_var
AC_SUBST([$1], "$full_var")
dnl restore prefix and exec_prefix
prefix=$prefix_save
exec_prefix=$exec_prefix_save
])
dnl Available from the GNU Autoconf Macro Archive at:
dnl http://www.gnu.org/software/ac-archive/htmldoc/ax_compare_version.html
AC_DEFUN([AX_COMPARE_VERSION], [
# Used to indicate true or false condition
ax_compare_version=false
# Convert the two version strings to be compared into a format that
# allows a simple string comparison. The end result is that a version
# string of the form 1.12.5-r617 will be converted to the form
# 0001001200050617. In other words, each number is zero padded to four
# digits, and non digits are removed.
AS_VAR_PUSHDEF([A],[ax_compare_version_A])
A=`echo "$1" | sed -e 's/\([[0-9]]*\)/Z\1Z/g' \
-e 's/Z\([[0-9]]\)Z/Z0\1Z/g' \
-e 's/Z\([[0-9]][[0-9]]\)Z/Z0\1Z/g' \
-e 's/Z\([[0-9]][[0-9]][[0-9]]\)Z/Z0\1Z/g' \
-e 's/[[^0-9]]//g'`
AS_VAR_PUSHDEF([B],[ax_compare_version_B])
B=`echo "$3" | sed -e 's/\([[0-9]]*\)/Z\1Z/g' \
-e 's/Z\([[0-9]]\)Z/Z0\1Z/g' \
-e 's/Z\([[0-9]][[0-9]]\)Z/Z0\1Z/g' \
-e 's/Z\([[0-9]][[0-9]][[0-9]]\)Z/Z0\1Z/g' \
-e 's/[[^0-9]]//g'`
dnl # In the case of le, ge, lt, and gt, the strings are sorted as necessary
dnl # then the first line is used to determine if the condition is true.
dnl # The sed right after the echo is to remove any indented white space.
m4_case(m4_tolower($2),
[lt],[
ax_compare_version=`echo "x$A
x$B" | sed 's/^ *//' | sort -r | sed "s/x${A}/false/;s/x${B}/true/;1q"`
],
[gt],[
ax_compare_version=`echo "x$A
x$B" | sed 's/^ *//' | sort | sed "s/x${A}/false/;s/x${B}/true/;1q"`
],
[le],[
ax_compare_version=`echo "x$A
x$B" | sed 's/^ *//' | sort | sed "s/x${A}/true/;s/x${B}/false/;1q"`
],
[ge],[
ax_compare_version=`echo "x$A
x$B" | sed 's/^ *//' | sort -r | sed "s/x${A}/true/;s/x${B}/false/;1q"`
],[
dnl Split the operator from the subversion count if present.
m4_bmatch(m4_substr($2,2),
[0],[
# A count of zero means use the length of the shorter version.
# Determine the number of characters in A and B.
ax_compare_version_len_A=`echo "$A" | awk '{print(length)}'`
ax_compare_version_len_B=`echo "$B" | awk '{print(length)}'`
# Set A to no more than B's length and B to no more than A's length.
A=`echo "$A" | sed "s/\(.\{$ax_compare_version_len_B\}\).*/\1/"`
B=`echo "$B" | sed "s/\(.\{$ax_compare_version_len_A\}\).*/\1/"`
],
[[0-9]+],[
# A count greater than zero means use only that many subversions
A=`echo "$A" | sed "s/\(\([[0-9]]\{4\}\)\{m4_substr($2,2)\}\).*/\1/"`
B=`echo "$B" | sed "s/\(\([[0-9]]\{4\}\)\{m4_substr($2,2)\}\).*/\1/"`
],
[.+],[
AC_WARNING(
[illegal OP numeric parameter: $2])
],[])
# Pad zeros at end of numbers to make same length.
ax_compare_version_tmp_A="$A`echo $B | sed 's/./0/g'`"
B="$B`echo $A | sed 's/./0/g'`"
A="$ax_compare_version_tmp_A"
# Check for equality or inequality as necessary.
m4_case(m4_tolower(m4_substr($2,0,2)),
[eq],[
test "x$A" = "x$B" && ax_compare_version=true
],
[ne],[
test "x$A" != "x$B" && ax_compare_version=true
],[
AC_WARNING([illegal OP parameter: $2])
])
])
AS_VAR_POPDEF([A])dnl
AS_VAR_POPDEF([B])dnl
dnl # Execute ACTION-IF-TRUE / ACTION-IF-FALSE.
if test "$ax_compare_version" = "true" ; then
m4_ifvaln([$4],[$4],[:])dnl
m4_ifvaln([$5],[else $5])dnl
fi
]) dnl AX_COMPARE_VERSION

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# -*- Autoconf -*-
# Process this file with autoconf to produce a configure script.
AC_INIT([lua-lxc], [lxc_version])
# We need pkg-config
PKG_PROG_PKG_CONFIG
AC_CONFIG_SRCDIR([configure.ac])
AC_CONFIG_AUX_DIR([config])
AC_CONFIG_HEADERS([src/config.h])
AM_INIT_AUTOMAKE([-Wall -Werror -Wno-portability subdir-objects])
AC_CANONICAL_HOST
AM_PROG_CC_C_O
AC_GNU_SOURCE
# libtool
LT_INIT
AC_SUBST([LIBTOOL_DEPS])
AC_ARG_ENABLE([werror],
[AC_HELP_STRING([--disable-werror],
[do not treat warnings as errors])],
[], [enable_werror=yes])
# Configuration examples
AC_ARG_ENABLE([examples],
[AC_HELP_STRING([--enable-examples], [install examples [default=yes]])],
[], [enable_examples=yes])
AM_CONDITIONAL([ENABLE_EXAMPLES], [test "x$enable_examples" = "xyes"])
# Lua module and scripts
AC_ARG_WITH([lua-pc],
[AS_HELP_STRING(
[--with-lua-pc=PKG],
[Specify pkg-config package name for lua]
)], [], [with_lua_pc=no])
if test "x$with_lua_pc" != "xno"; then
# exit with error if not found
PKG_CHECK_MODULES([LUA], [$with_lua_pc], [LUAPKGCONFIG=$with_lua_pc])
fi
if "x$with_lua_pc" != "xno"; then
PKG_CHECK_MODULES([LUA], [$with_lua_pc],
[LUAPKGCONFIG=$with_lua_pc
enable_lua=yes],
[enable_lua=no])
fi
PKG_CHECK_MODULES([LUA], [lua], [LUAPKGCONFIG=lua],
[PKG_CHECK_MODULES([LUA], [lua5.2], [LUAPKGCONFIG=lua5.2],
[PKG_CHECK_MODULES([LUA], [lua5.1], [LUAPKGCONFIG=lua5.1],
[AS_IF([test "x$enable_lua" = "xyes"],
[AC_MSG_ERROR([Lua not found. Please use --with-lua-pc=PKG])],
[enable_lua=no])]
)]
)])
AC_MSG_CHECKING([Lua version])
PKG_CHECK_VAR([LUA_VERSION], [$LUAPKGCONFIG], [V],,
[PKG_CHECK_VAR([LUA_VERSION], [$LUAPKGCONFIG], [major_version])])
AC_MSG_RESULT([$LUA_VERSION])
AC_SUBST([LUA_LIBDIR], [$libdir/lua/$LUA_VERSION])
AC_SUBST([LUA_SHAREDIR], [$datadir/lua/$LUA_VERSION])
# Not in older autoconf versions
# AS_VAR_COPY(DEST, SOURCE)
# -------------------------
# Set the polymorphic shell variable DEST to the contents of the polymorphic
# shell variable SOURCE.
m4_ifdef([AS_VAR_COPY], [],
[AC_DEFUN([AS_VAR_COPY],
[AS_LITERAL_IF([$1[]$2], [$1=$$2], [eval $1=\$$2])])
])
dnl PKG_CHECK_VAR was introduced with pkg-config 0.28
m4_ifdef([PKG_CHECK_VAR], [],
[AC_DEFUN([PKG_CHECK_VAR],
[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
AC_ARG_VAR([$1], [value of $3 for $2, overriding pkg-config])dnl
_PKG_CONFIG([$1], [variable="][$3]["], [$2])
AS_VAR_COPY([$1], [pkg_cv_][$1])
AS_VAR_IF([$1], [""], [$5], [$4])dnl
])# PKG_CHECK_VAR
])
# Expand some useful variables
AS_AC_EXPAND(PREFIX, "$prefix")
AS_AC_EXPAND(LIBDIR, "$libdir")
AS_AC_EXPAND(BINDIR, "$bindir")
AS_AC_EXPAND(SBINDIR, "$sbindir")
AS_AC_EXPAND(LIBEXECDIR, "$libexecdir")
AS_AC_EXPAND(INCLUDEDIR, "$includedir")
AS_AC_EXPAND(LXCPATH, "$with_config_path")
# We need the install path so criu knows where to reference the hook scripts.
AC_DEFINE_UNQUOTED([DATADIR], "$DATADIR", ["Prefix for shared files."])
# Check for some standard binaries
AC_PROG_GCC_TRADITIONAL
AC_PROG_SED
if test "x$GCC" = "xyes"; then
CFLAGS="$CFLAGS -Wall"
if test "x$enable_werror" = "xyes"; then
CFLAGS="$CFLAGS -Werror"
fi
fi
# Files requiring some variable expansion
AC_CONFIG_FILES([
Makefile
src/Makefile
])
AC_CONFIG_COMMANDS([default],[[]],[[]])
AC_OUTPUT
# Configuration overview
cat << EOF
----------------------------
Environment:
- compiler: $CC
- with_lua_pc: $with_lua_pc
EOF

36
src/Makefile.am Normal file
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@@ -0,0 +1,36 @@
luasharedir=$(LUA_SHAREDIR)
lualibdir=$(LUA_LIBDIR)
luadir=$(luasharedir)
sodir=$(lualibdir)/lxc
lua_DATA=lxc.lua
lib_LTLIBRARIES = libcore.la
libcore_la_SOURCES = core.c
AM_LDFLAGS = -Wl,-E
AM_CFLAGS=-I$(top_builddir)/src -I$(top_srcdir)/src $(LUA_CFLAGS) -DVERSION=\"$(VERSION)\" -DLXCPATH=\"$(LXCPATH)\"
libcore_la_CFLAGS = -fPIC -DPIC $(AM_CFLAGS)
libcore_la_LDFLAGS = \
-shared \
-L$(top_builddir)/ \
-Wl,-soname,core.so.$(firstword $(subst ., ,$(VERSION)))
libcore_la_LIBADD = -llxc
install-exec-local: install-libLTLIBRARIES
mkdir -p $(DESTDIR)$(lualibdir)/lxc/
mv $(DESTDIR)$(libdir)/libcore.so.0.0.0 $(DESTDIR)$(lualibdir)/lxc/core.so
rm $(DESTDIR)$(libdir)/libcore.*
uninstall-local:
$(RM) $(DESTDIR)$(lualibdir)/lxc/core.so*
lxc.lua:
EXTRA_DIST= \
lxc.lua \
test/apitest.lua

619
src/core.c Normal file
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@@ -0,0 +1,619 @@
/*
* lua-lxc: lua bindings for lxc
*
* Copyright © 2012 Oracle.
*
* Authors:
* Dwight Engen <dwight.engen@oracle.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#define LUA_LIB
#define _GNU_SOURCE
#include <lua.h>
#include <lauxlib.h>
#include <assert.h>
#include <string.h>
#include <unistd.h>
#include <libgen.h>
#include <lxc/lxccontainer.h>
#if LUA_VERSION_NUM < 502
#define luaL_newlib(L,l) (lua_newtable(L), luaL_register(L,NULL,l))
#define luaL_setfuncs(L,l,n) (assert(n==0), luaL_register(L,NULL,l))
#define luaL_checkunsigned(L,n) luaL_checknumber(L,n)
#endif
#if LUA_VERSION_NUM >= 503
#ifndef luaL_checkunsigned
#define luaL_checkunsigned(L,n) ((lua_Unsigned)luaL_checkinteger(L,n))
#endif
#endif
#ifdef NO_CHECK_UDATA
#define checkudata(L,i,tname) lua_touserdata(L, i)
#else
#define checkudata(L,i,tname) luaL_checkudata(L, i, tname)
#endif
#define lua_boxpointer(L,u) \
(*(void **) (lua_newuserdata(L, sizeof(void *))) = (u))
#define lua_unboxpointer(L,i,tname) \
(*(void **) (checkudata(L, i, tname)))
#define CONTAINER_TYPENAME "lxc.container"
/* Max Lua arguments for function */
#define MAXVARS 200
static int container_new(lua_State *L)
{
struct lxc_container *c;
const char *name = luaL_checkstring(L, 1);
const char *configpath = NULL;
int argc = lua_gettop(L);
if (argc > 1)
configpath = luaL_checkstring(L, 2);
c = lxc_container_new(name, configpath);
if (c) {
lua_boxpointer(L, c);
luaL_getmetatable(L, CONTAINER_TYPENAME);
lua_setmetatable(L, -2);
} else {
lua_pushnil(L);
}
return 1;
}
static int container_gc(lua_State *L)
{
struct lxc_container *c = lua_unboxpointer(L, 1, CONTAINER_TYPENAME);
/* XXX what to do if this fails? */
lxc_container_put(c);
return 0;
}
static int container_config_file_name(lua_State *L)
{
struct lxc_container *c = lua_unboxpointer(L, 1, CONTAINER_TYPENAME);
char *config_file_name;
config_file_name = c->config_file_name(c);
lua_pushstring(L, config_file_name);
free(config_file_name);
return 1;
}
static int container_defined(lua_State *L)
{
struct lxc_container *c = lua_unboxpointer(L, 1, CONTAINER_TYPENAME);
lua_pushboolean(L, !!c->is_defined(c));
return 1;
}
static int container_name(lua_State *L)
{
struct lxc_container *c = lua_unboxpointer(L, 1, CONTAINER_TYPENAME);
lua_pushstring(L, c->name);
return 1;
}
static int container_create(lua_State *L)
{
struct lxc_container *c = lua_unboxpointer(L, 1, CONTAINER_TYPENAME);
char *template_name = strdupa(luaL_checkstring(L, 2));
int argc = lua_gettop(L);
char **argv;
int i;
argv = alloca((argc+1) * sizeof(char *));
for (i = 0; i < argc-2; i++)
argv[i] = strdupa(luaL_checkstring(L, i+3));
argv[i] = NULL;
lua_pushboolean(L, !!c->create(c, template_name, NULL, NULL, 0, argv));
return 1;
}
static int container_destroy(lua_State *L)
{
struct lxc_container *c = lua_unboxpointer(L, 1, CONTAINER_TYPENAME);
lua_pushboolean(L, !!c->destroy(c));
return 1;
}
/* container state */
static int container_start(lua_State *L)
{
struct lxc_container *c = lua_unboxpointer(L, 1, CONTAINER_TYPENAME);
int argc = lua_gettop(L);
char **argv = NULL;
int i,j;
int useinit = 0;
if (argc > 1) {
argv = alloca((argc+1) * sizeof(char *));
for (i = 0, j = 0; i < argc-1; i++) {
const char *arg = luaL_checkstring(L, i+2);
if (!strcmp(arg, "useinit"))
useinit = 1;
else
argv[j++] = strdupa(arg);
}
argv[j] = NULL;
}
c->want_daemonize(c, true);
lua_pushboolean(L, !!c->start(c, useinit, argv));
return 1;
}
static int container_stop(lua_State *L)
{
struct lxc_container *c = lua_unboxpointer(L, 1, CONTAINER_TYPENAME);
lua_pushboolean(L, !!c->stop(c));
return 1;
}
static int container_shutdown(lua_State *L)
{
struct lxc_container *c = lua_unboxpointer(L, 1, CONTAINER_TYPENAME);
int timeout = luaL_checkinteger(L, 2);
lua_pushboolean(L, !!c->shutdown(c, timeout));
return 1;
}
static int container_wait(lua_State *L)
{
struct lxc_container *c = lua_unboxpointer(L, 1, CONTAINER_TYPENAME);
const char *state = luaL_checkstring(L, 2);
int timeout = luaL_checkinteger(L, 3);
lua_pushboolean(L, !!c->wait(c, state, timeout));
return 1;
}
static int container_rename(lua_State *L)
{
struct lxc_container *c = lua_unboxpointer(L, 1, CONTAINER_TYPENAME);
const char *new_name;
int argc = lua_gettop(L);
if (argc > 1) {
new_name = luaL_checkstring(L, 2);
lua_pushboolean(L, !!c->rename(c, new_name));
} else
lua_pushnil(L);
return 1;
}
static int container_freeze(lua_State *L)
{
struct lxc_container *c = lua_unboxpointer(L, 1, CONTAINER_TYPENAME);
lua_pushboolean(L, !!c->freeze(c));
return 1;
}
static int container_unfreeze(lua_State *L)
{
struct lxc_container *c = lua_unboxpointer(L, 1, CONTAINER_TYPENAME);
lua_pushboolean(L, !!c->unfreeze(c));
return 1;
}
static int container_running(lua_State *L)
{
struct lxc_container *c = lua_unboxpointer(L, 1, CONTAINER_TYPENAME);
lua_pushboolean(L, !!c->is_running(c));
return 1;
}
static int container_state(lua_State *L)
{
struct lxc_container *c = lua_unboxpointer(L, 1, CONTAINER_TYPENAME);
lua_pushstring(L, c->state(c));
return 1;
}
static int container_init_pid(lua_State *L)
{
struct lxc_container *c = lua_unboxpointer(L, 1, CONTAINER_TYPENAME);
lua_pushinteger(L, c->init_pid(c));
return 1;
}
/* configuration file methods */
static int container_load_config(lua_State *L)
{
struct lxc_container *c = lua_unboxpointer(L, 1, CONTAINER_TYPENAME);
int arg_cnt = lua_gettop(L);
const char *alt_path = NULL;
if (arg_cnt > 1)
alt_path = luaL_checkstring(L, 2);
lua_pushboolean(L, !!c->load_config(c, alt_path));
return 1;
}
static int container_save_config(lua_State *L)
{
struct lxc_container *c = lua_unboxpointer(L, 1, CONTAINER_TYPENAME);
int arg_cnt = lua_gettop(L);
const char *alt_path = NULL;
if (arg_cnt > 1)
alt_path = luaL_checkstring(L, 2);
lua_pushboolean(L, !!c->save_config(c, alt_path));
return 1;
}
static int container_get_config_path(lua_State *L)
{
struct lxc_container *c = lua_unboxpointer(L, 1, CONTAINER_TYPENAME);
const char *config_path;
config_path = c->get_config_path(c);
lua_pushstring(L, config_path);
return 1;
}
static int container_set_config_path(lua_State *L)
{
struct lxc_container *c = lua_unboxpointer(L, 1, CONTAINER_TYPENAME);
const char *config_path = luaL_checkstring(L, 2);
lua_pushboolean(L, !!c->set_config_path(c, config_path));
return 1;
}
static int container_clear_config_item(lua_State *L)
{
struct lxc_container *c = lua_unboxpointer(L, 1, CONTAINER_TYPENAME);
const char *key = luaL_checkstring(L, 2);
lua_pushboolean(L, !!c->clear_config_item(c, key));
return 1;
}
static int container_get_cgroup_item(lua_State *L)
{
struct lxc_container *c = lua_unboxpointer(L, 1, CONTAINER_TYPENAME);
const char *key = luaL_checkstring(L, 2);
int len;
char *value;
len = c->get_cgroup_item(c, key, NULL, 0);
if (len <= 0)
goto not_found;
value = alloca(sizeof(char)*len + 1);
if (c->get_cgroup_item(c, key, value, len + 1) != len)
goto not_found;
lua_pushstring(L, value);
return 1;
not_found:
lua_pushnil(L);
return 1;
}
static int container_get_config_item(lua_State *L)
{
struct lxc_container *c = lua_unboxpointer(L, 1, CONTAINER_TYPENAME);
const char *key = luaL_checkstring(L, 2);
int len;
char *value;
len = c->get_config_item(c, key, NULL, 0);
if (len <= 0)
goto not_found;
value = alloca(sizeof(char)*len + 1);
if (c->get_config_item(c, key, value, len + 1) != len)
goto not_found;
lua_pushstring(L, value);
return 1;
not_found:
lua_pushnil(L);
return 1;
}
static int container_set_cgroup_item(lua_State *L)
{
struct lxc_container *c = lua_unboxpointer(L, 1, CONTAINER_TYPENAME);
const char *key = luaL_checkstring(L, 2);
const char *value = luaL_checkstring(L, 3);
lua_pushboolean(L, !!c->set_cgroup_item(c, key, value));
return 1;
}
static int container_set_config_item(lua_State *L)
{
struct lxc_container *c = lua_unboxpointer(L, 1, CONTAINER_TYPENAME);
const char *key = luaL_checkstring(L, 2);
const char *value = luaL_checkstring(L, 3);
lua_pushboolean(L, !!c->set_config_item(c, key, value));
return 1;
}
static int container_get_keys(lua_State *L)
{
struct lxc_container *c = lua_unboxpointer(L, 1, CONTAINER_TYPENAME);
const char *key = NULL;
int len;
char *value;
int arg_cnt = lua_gettop(L);
if (arg_cnt > 1)
key = luaL_checkstring(L, 2);
len = c->get_keys(c, key, NULL, 0);
if (len <= 0)
goto not_found;
value = alloca(sizeof(char)*len + 1);
if (c->get_keys(c, key, value, len + 1) != len)
goto not_found;
lua_pushstring(L, value);
return 1;
not_found:
lua_pushnil(L);
return 1;
}
static int container_attach(lua_State *L)
{
struct lxc_container *c = lua_unboxpointer(L, 1, CONTAINER_TYPENAME);
int argc = lua_gettop(L);
char **argv = NULL;
int i;
if (argc > 1) {
argv = alloca((argc+1) * sizeof(char *));
for (i = 0; i < argc-1; i++) {
const char *arg = luaL_checkstring(L, i+2);
argv[i] = strdupa(arg);
}
argv[i] = NULL;
}
else
{
lua_pushnil(L);
return 1;
}
lua_pushboolean(L, !(c->attach_run_wait(c, NULL, argv[0], (const char**)argv)));
return 1;
}
static int container_get_interfaces(lua_State *L)
{
struct lxc_container *c = lua_unboxpointer(L, 1, CONTAINER_TYPENAME);
char **ifaces;
int i;
ifaces = c->get_interfaces(c);
if (!ifaces){
lua_pushnil(L);
return 1;
}
for (i = 0; ifaces[i]; i++);
/* protect LUA stack form overflow */
if (i > MAXVARS || !lua_checkstack(L, i)){
for (i = 0; ifaces[i]; i++)
free(ifaces[i]);
lua_pushnil(L);
return 1;
}
for (i = 0; ifaces[i]; i++){
lua_pushstring(L, ifaces[i]);
free(ifaces[i]);
}
return i;
}
static int container_get_ips(lua_State *L)
{
struct lxc_container *c = lua_unboxpointer(L, 1, CONTAINER_TYPENAME);
int argc = lua_gettop(L);
char **addresses;
char *iface = NULL, *family = NULL;
int i, scope = 0;
if (argc > 1)
iface = (char *)luaL_checkstring(L, 2);
if (argc > 2)
family = (char *)luaL_checkstring(L, 3);
if (argc > 3)
scope = luaL_checkinteger(L, 4);
addresses = c->get_ips(c, iface, family, scope);
if (!addresses){
lua_pushnil(L);
return 1;
}
for (i = 0; addresses[i]; i++);
/* protect LUA stack form overflow */
if (i > MAXVARS || !lua_checkstack(L, i)){
for (i = 0; addresses[i]; i++)
free(addresses[i]);
lua_pushnil(L);
return 1;
}
for (i = 0; addresses[i]; i++){
lua_pushstring(L, addresses[i]);
free(addresses[i]);
}
return i;
}
static luaL_Reg lxc_container_methods[] =
{
{"attach", container_attach},
{"create", container_create},
{"defined", container_defined},
{"destroy", container_destroy},
{"init_pid", container_init_pid},
{"name", container_name},
{"running", container_running},
{"state", container_state},
{"freeze", container_freeze},
{"unfreeze", container_unfreeze},
{"start", container_start},
{"stop", container_stop},
{"shutdown", container_shutdown},
{"wait", container_wait},
{"rename", container_rename},
{"config_file_name", container_config_file_name},
{"load_config", container_load_config},
{"save_config", container_save_config},
{"get_cgroup_item", container_get_cgroup_item},
{"set_cgroup_item", container_set_cgroup_item},
{"get_config_path", container_get_config_path},
{"set_config_path", container_set_config_path},
{"get_config_item", container_get_config_item},
{"set_config_item", container_set_config_item},
{"clear_config_item", container_clear_config_item},
{"get_keys", container_get_keys},
{"get_interfaces", container_get_interfaces},
{"get_ips", container_get_ips},
{NULL, NULL}
};
static int lxc_version_get(lua_State *L) {
lua_pushstring(L, VERSION);
return 1;
}
static int lxc_default_config_path_get(lua_State *L) {
const char *lxcpath = lxc_get_global_config_item("lxc.lxcpath");
lua_pushstring(L, lxcpath);
return 1;
}
static int cmd_get_config_item(lua_State *L)
{
int arg_cnt = lua_gettop(L);
const char *name = luaL_checkstring(L, 1);
const char *key = luaL_checkstring(L, 2);
const char *lxcpath = NULL;
char *value;
struct lxc_container *c;
if (arg_cnt > 2)
lxcpath = luaL_checkstring(L, 3);
c = lxc_container_new(name, lxcpath);
if (!c)
goto not_found;
value = c->get_running_config_item(c, key);
lxc_container_put(c);
if (value < 0)
goto not_found;
lua_pushstring(L, value);
return 1;
not_found:
lua_pushnil(L);
return 1;
}
/* utility functions */
static int lxc_util_usleep(lua_State *L) {
usleep((useconds_t)luaL_checkunsigned(L, 1));
return 0;
}
static int lxc_util_dirname(lua_State *L) {
char *path = strdupa(luaL_checkstring(L, 1));
lua_pushstring(L, dirname(path));
return 1;
}
static luaL_Reg lxc_lib_methods[] = {
{"version_get", lxc_version_get},
{"default_config_path_get", lxc_default_config_path_get},
{"cmd_get_config_item", cmd_get_config_item},
{"container_new", container_new},
{"usleep", lxc_util_usleep},
{"dirname", lxc_util_dirname},
{NULL, NULL}
};
static int lxc_lib_uninit(lua_State *L) {
(void) L;
/* this is where we would fini liblxc.so if we needed to */
return 0;
}
LUALIB_API int luaopen_lxc_core(lua_State *L) {
/* this is where we would initialize liblxc.so if we needed to */
luaL_newlib(L, lxc_lib_methods);
lua_newuserdata(L, 0);
lua_newtable(L); /* metatable */
lua_pushvalue(L, -1);
lua_pushliteral(L, "__gc");
lua_pushcfunction(L, lxc_lib_uninit);
lua_rawset(L, -3);
lua_setmetatable(L, -3);
lua_rawset(L, -3);
luaL_newmetatable(L, CONTAINER_TYPENAME);
luaL_setfuncs(L, lxc_container_methods, 0);
lua_pushvalue(L, -1); /* push metatable */
lua_pushstring(L, "__gc");
lua_pushcfunction(L, container_gc);
lua_settable(L, -3);
lua_setfield(L, -2, "__index"); /* metatable.__index = metatable */
lua_pop(L, 1);
return 1;
}

421
src/lxc.lua Executable file
View File

@@ -0,0 +1,421 @@
--
-- lua lxc module
--
-- Copyright © 2012 Oracle.
--
-- Authors:
-- Dwight Engen <dwight.engen@oracle.com>
--
-- This library is free software; you can redistribute it and/or
-- modify it under the terms of the GNU Lesser General Public
-- License as published by the Free Software Foundation; either
-- version 2.1 of the License, or (at your option) any later version.
--
-- This library is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-- Lesser General Public License for more details.
--
-- You should have received a copy of the GNU Lesser General Public
-- License along with this library; if not, write to the Free Software
-- Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
--
local core = require("lxc.core")
local lfs = require("lfs")
local table = require("table")
local string = require("string")
local io = require("io")
module("lxc", package.seeall)
local lxc_path
local log_level = 3
-- lua 5.1 compat
if table.unpack == nil then
table.unpack = unpack
end
-- the following two functions can be useful for debugging
function printf(...)
local function wrapper(...) io.write(string.format(...)) end
local status, result = pcall(wrapper, ...)
if not status then
error(result, 2)
end
end
function log(level, ...)
if (log_level >= level) then
printf(os.date("%Y-%m-%d %T "))
printf(...)
end
end
function string:split(delim, max_cols)
local cols = {}
local start = 1
local nextc
repeat
nextc = string.find(self, delim, start)
if (nextc and #cols ~= max_cols - 1) then
table.insert(cols, string.sub(self, start, nextc-1))
start = nextc + #delim
else
table.insert(cols, string.sub(self, start, string.len(self)))
nextc = nil
end
until nextc == nil or start > #self
return cols
end
-- container class
container = {}
container_mt = {}
container_mt.__index = container
function container:new(lname, config)
local lcore
local lnetcfg = {}
local lstats = {}
if lname then
if config then
lcore = core.container_new(lname, config)
else
lcore = core.container_new(lname)
end
end
return setmetatable({ctname = lname, core = lcore, netcfg = lnetcfg, stats = lstats}, container_mt)
end
-- methods interfacing to core functionality
function container:attach(what, ...)
return self.core:attach(what, ...)
end
function container:config_file_name()
return self.core:config_file_name()
end
function container:defined()
return self.core:defined()
end
function container:init_pid()
return self.core:init_pid()
end
function container:name()
return self.core:name()
end
function container:start()
return self.core:start()
end
function container:stop()
return self.core:stop()
end
function container:shutdown(timeout)
return self.core:shutdown(timeout)
end
function container:wait(state, timeout)
return self.core:wait(state, timeout)
end
function container:freeze()
return self.core:freeze()
end
function container:unfreeze()
return self.core:unfreeze()
end
function container:running()
return self.core:running()
end
function container:state()
return self.core:state()
end
function container:create(template, ...)
return self.core:create(template, ...)
end
function container:destroy()
return self.core:destroy()
end
-- return nil if name missing
function container:rename(name)
return self.core:rename(name)
end
function container:get_config_path()
return self.core:get_config_path()
end
function container:set_config_path(path)
return self.core:set_config_path(path)
end
function container:append_config_item(key, value)
return self.core:set_config_item(key, value)
end
function container:clear_config_item(key)
return self.core:clear_config_item(key)
end
function container:get_cgroup_item(key)
return self.core:get_cgroup_item(key)
end
function container:get_config_item(key)
local value
local vals = {}
value = self.core:get_config_item(key)
-- check if it is a single item
if (not value or not string.find(value, "\n")) then
return value
end
-- it must be a list type item, make a table of it
vals = value:split("\n", 1000)
-- make it a "mixed" table, ie both dictionary and list for ease of use
for _,v in ipairs(vals) do
vals[v] = true
end
return vals
end
function container:set_cgroup_item(key, value)
return self.core:set_cgroup_item(key, value)
end
function container:set_config_item(key, value)
return self.core:set_config_item(key, value)
end
function container:get_keys(base)
local ktab = {}
local keys
if (base) then
keys = self.core:get_keys(base)
base = base .. "."
else
keys = self.core:get_keys()
base = ""
end
if (keys == nil) then
return nil
end
keys = keys:split("\n", 1000)
for _,v in ipairs(keys) do
local config_item = base .. v
ktab[v] = self.core:get_config_item(config_item)
end
return ktab
end
-- return nil or more args
function container:get_interfaces()
return self.core:get_interfaces()
end
-- return nil or more args
function container:get_ips(...)
return self.core:get_ips(...)
end
function container:load_config(alt_path)
if (alt_path) then
return self.core:load_config(alt_path)
else
return self.core:load_config()
end
end
function container:save_config(alt_path)
if (alt_path) then
return self.core:save_config(alt_path)
else
return self.core:save_config()
end
end
-- methods for stats collection from various cgroup files
-- read integers at given coordinates from a cgroup file
function container:stat_get_ints(item, coords)
local lines = {}
local result = {}
local flines = self:get_cgroup_item(item)
if (flines == nil) then
for k,c in ipairs(coords) do
table.insert(result, 0)
end
else
for line in flines:gmatch("[^\r\n]+") do
table.insert(lines, line)
end
for k,c in ipairs(coords) do
local col
col = lines[c[1]]:split(" ", 80)
local val = tonumber(col[c[2]])
table.insert(result, val)
end
end
return table.unpack(result)
end
-- read an integer from a cgroup file
function container:stat_get_int(item)
local line = self:get_cgroup_item(item)
-- if line is nil (on an error like Operation not supported because
-- CONFIG_MEMCG_SWAP_ENABLED isn't enabled) return 0
return tonumber(line) or 0
end
function container:stat_match_get_int(item, match, column)
local val
local lines = self:get_cgroup_item(item)
if (lines == nil) then
return 0
end
for line in lines:gmatch("[^\r\n]+") do
if (string.find(line, match)) then
local col
col = line:split(" ", 80)
val = tonumber(col[column]) or 0
end
end
return val
end
function container:stats_get(total)
local stat = {}
stat.mem_used = self:stat_get_int("memory.usage_in_bytes")
stat.mem_limit = self:stat_get_int("memory.limit_in_bytes")
stat.memsw_used = self:stat_get_int("memory.memsw.usage_in_bytes")
stat.memsw_limit = self:stat_get_int("memory.memsw.limit_in_bytes")
stat.kmem_used = self:stat_get_int("memory.kmem.usage_in_bytes")
stat.kmem_limit = self:stat_get_int("memory.kmem.limit_in_bytes")
stat.cpu_use_nanos = self:stat_get_int("cpuacct.usage")
stat.cpu_use_user,
stat.cpu_use_sys = self:stat_get_ints("cpuacct.stat", {{1, 2}, {2, 2}})
stat.blkio = self:stat_match_get_int("blkio.throttle.io_service_bytes", "Total", 2)
if (total) then
total.mem_used = total.mem_used + stat.mem_used
total.mem_limit = total.mem_limit + stat.mem_limit
total.memsw_used = total.memsw_used + stat.memsw_used
total.memsw_limit = total.memsw_limit + stat.memsw_limit
total.kmem_used = total.kmem_used + stat.kmem_used
total.kmem_limit = total.kmem_limit + stat.kmem_limit
total.cpu_use_nanos = total.cpu_use_nanos + stat.cpu_use_nanos
total.cpu_use_user = total.cpu_use_user + stat.cpu_use_user
total.cpu_use_sys = total.cpu_use_sys + stat.cpu_use_sys
total.blkio = total.blkio + stat.blkio
end
return stat
end
local M = { container = container }
function M.stats_clear(stat)
stat.mem_used = 0
stat.mem_limit = 0
stat.memsw_used = 0
stat.memsw_limit = 0
stat.kmem_used = 0
stat.kmem_limit = 0
stat.cpu_use_nanos = 0
stat.cpu_use_user = 0
stat.cpu_use_sys = 0
stat.blkio = 0
end
-- return configured containers found in LXC_PATH directory
function M.containers_configured(names_only)
local containers = {}
for dir in lfs.dir(lxc_path) do
if (dir ~= "." and dir ~= "..")
then
local cfgfile = lxc_path .. "/" .. dir .. "/config"
local cfgattr = lfs.attributes(cfgfile)
if (cfgattr and cfgattr.mode == "file") then
if (names_only) then
-- note, this is a "mixed" table, ie both dictionary and list
containers[dir] = true
table.insert(containers, dir)
else
local ct = container:new(dir)
-- note, this is a "mixed" table, ie both dictionary and list
containers[dir] = ct
table.insert(containers, dir)
end
end
end
end
table.sort(containers, function (a,b) return (a < b) end)
return containers
end
-- return running containers found in cgroup fs
function M.containers_running(names_only)
local containers = {}
local names = M.containers_configured(true)
for _,name in ipairs(names) do
local ct = container:new(name)
if ct:running() then
-- note, this is a "mixed" table, ie both dictionary and list
table.insert(containers, name)
if (names_only) then
containers[name] = true
ct = nil
else
containers[name] = ct
end
end
end
table.sort(containers, function (a,b) return (a < b) end)
return containers
end
function M.version_get()
return core.version_get()
end
function M.default_config_path_get()
return core.default_config_path_get()
end
function M.cmd_get_config_item(name, item, lxcpath)
if (lxcpath) then
return core.cmd_get_config_item(name, item, lxcpath)
else
return core.cmd_get_config_item(name, item)
end
end
lxc_path = core.default_config_path_get()
return M

353
src/test/apitest.lua Executable file
View File

@@ -0,0 +1,353 @@
#!/usr/bin/env lua
--
-- test the lxc lua api
--
-- Copyright © 2012 Oracle.
--
-- Authors:
-- Dwight Engen <dwight.engen@oracle.com>
--
-- This library is free software; you can redistribute it and/or modify
-- it under the terms of the GNU General Public License version 2, as
-- published by the Free Software Foundation.
--
-- This program is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU General Public License for more details.
--
-- You should have received a copy of the GNU General Public License along
-- with this program; if not, write to the Free Software Foundation, Inc.,
-- 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
--
local lxc = require("lxc")
local lfs = require("lfs")
local getopt = require("alt_getopt")
local LXC_PATH = lxc.default_config_path_get()
local container
local cfg_containers = {}
local optarg = {}
local optind = {}
function printf(...)
local function wrapper(...) io.write(string.format(...)) end
local status, result = pcall(wrapper, ...)
if not status then
error(result, 2)
end
end
function log(level, ...)
if (optarg["v"] >= level) then
printf(os.date("%Y-%m-%d %T "))
printf(...)
printf("\n")
end
end
function die(...)
printf(...)
os.exit(1)
end
function test_global_info()
local cfg_containers
local run_containers
log(0, "%-20s %s", "LXC version:", lxc.version_get())
log(0, "%-20s %s", "Container name:", optarg["n"])
if (optarg["c"]) then
log(0, "%-20s %s", "Creating container:", "yes")
log(0, "%-20s %s", "With template:", optarg["t"])
end
log(0, "%-20s %s", "Containers path:", LXC_PATH)
cfg_containers = lxc.containers_configured()
log(0, "%-20s", "Containers configured:")
for _,v in ipairs(cfg_containers) do
log(0, " %s", v)
end
run_containers = lxc.containers_running(true)
log(0, "%-20s", "Containers running:")
for _,v in ipairs(run_containers) do
log(0, " %s", v)
end
end
function test_container_new()
container = lxc.container:new(optarg["n"])
assert(container ~= nil)
assert(container:config_file_name() == string.format("%s/%s/config", LXC_PATH, optarg["n"]))
end
function test_container_config_path()
local cfgcontainer
local cfgpath = "/tmp/" .. optarg["n"]
local cfgname = cfgpath .. "/config"
log(0, "Test container config path...")
-- create a config file in the new location from container's config
assert(lfs.mkdir(cfgpath))
assert(container:save_config(cfgname))
cfgcontainer = lxc.container:new(optarg["n"], "/tmp")
assert(cfgcontainer ~= nil)
log(0, "cfgname:%s cfgpath:%s", cfgcontainer:config_file_name(), cfgcontainer:get_config_path())
assert(cfgcontainer:config_file_name() == cfgname)
assert(cfgcontainer:get_config_path() == "/tmp")
assert(cfgcontainer:set_config_path(LXC_PATH))
assert(cfgcontainer:get_config_path() == LXC_PATH)
assert(os.remove(cfgname))
assert(lfs.rmdir(cfgpath))
end
function test_container_create()
if (optarg["c"]) then
log(0, "%-20s %s", "Destroy existing container:", optarg["n"])
container:destroy()
assert(container:defined() == false)
else
local cfg_containers = lxc.containers_configured()
if (cfg_containers[optarg["n"]]) then
log(0, "%-20s %s", "Use existing container:", optarg["n"])
return
end
end
log(0, "%-20s %s", "Creating rootfs using:", optarg["t"])
assert(container:create(optarg["t"]) == true)
assert(container:defined() == true)
assert(container:name() == optarg["n"])
end
function test_container_started()
local now_running
log(2, "state:%s pid:%d\n", container:state(), container:init_pid())
assert(container:init_pid() > 1)
assert(container:running() == true)
assert(container:state() == "RUNNING")
now_running = lxc.containers_running(true)
assert(now_running[optarg["n"]] ~= nil)
log(1, "%-20s %s", "Running, init pid:", container:init_pid())
end
function test_container_stopped()
local now_running
assert(container:init_pid() == -1)
assert(container:running() == false)
assert(container:state() == "STOPPED")
now_running = lxc.containers_running(true)
assert(now_running[optarg["n"]] == nil)
end
function test_container_frozen()
local now_running
assert(container:init_pid() > 1)
assert(container:running() == true)
assert(container:state() == "FROZEN")
now_running = lxc.containers_running(true)
assert(now_running[optarg["n"]] ~= nil)
end
function test_container_start()
log(0, "Starting...")
if (not container:start()) then
log(1, "Start returned failure, waiting another 10 seconds...")
container:wait("RUNNING", 10)
end
container:wait("RUNNING", 1)
end
function test_container_stop()
log(0, "Stopping...")
if (not container:stop()) then
log(1, "Stop returned failure, waiting another 10 seconds...")
container:wait("STOPPED", 10)
end
container:wait("STOPPED", 1)
end
function test_container_freeze()
log(0, "Freezing...")
if (not container:freeze()) then
log(1, "Freeze returned failure, waiting another 10 seconds...")
container:wait("FROZEN", 10)
end
end
function test_container_unfreeze()
log(0, "Unfreezing...")
if (not container:unfreeze()) then
log(1, "Unfreeze returned failure, waiting another 10 seconds...")
container:wait("RUNNING", 10)
end
end
function test_container_shutdown()
log(0, "Shutting down...")
container:shutdown(5)
if (container:running()) then
test_container_stop()
end
end
function test_container_in_cfglist(should_find)
local cfg_containers = lxc.containers_configured()
if (should_find) then
assert(cfg_containers[container:name()] ~= nil)
else
assert(cfg_containers[container:name()] == nil)
end
end
function test_container_attach()
log(0, "Test attach...")
assert(container:running() == true)
assert(container:attach("/bin/ps") == true)
end
function test_container_cgroup()
log(0, "Test get/set cgroup items...")
max_mem = container:get_cgroup_item("memory.max_usage_in_bytes")
saved_limit = container:get_cgroup_item("memory.limit_in_bytes")
assert(saved_limit ~= max_mem)
assert(container:set_cgroup_item("memory.limit_in_bytes", max_mem))
assert(container:get_cgroup_item("memory.limit_in_bytes") ~= saved_limit)
assert(container:set_cgroup_item("memory.limit_in_bytes", "-1"))
end
function test_container_cmd()
log(0, "Test get config from running container...")
veth_pair = lxc.cmd_get_config_item(optarg["n"], "lxc.net.0.veth.pair")
log(0, " veth.pair:%s", veth_pair)
end
function test_config_items()
log(0, "Test set/clear configuration items...")
-- test setting a 'single type' item
assert(container:get_config_item("lxc.uts.name") == optarg["n"])
container:set_config_item("lxc.uts.name", "foobar")
assert(container:get_config_item("lxc.uts.name") == "foobar")
container:set_config_item("lxc.uts.name", optarg["n"])
assert(container:get_config_item("lxc.uts.name") == optarg["n"])
-- test clearing/setting a 'list type' item
container:clear_config_item("lxc.cap.drop")
container:set_config_item("lxc.cap.drop", "new_cap1")
container:set_config_item("lxc.cap.drop", "new_cap2")
local cap_drop = container:get_config_item("lxc.cap.drop")
assert(cap_drop["new_cap1"] ~= nil)
assert(cap_drop["new_cap2"] ~= nil)
-- note: clear_config_item only works on list type items
container:clear_config_item("lxc.cap.drop")
assert(container:get_config_item("lxc.cap.drop") == nil)
local altname = "/tmp/" .. optarg["n"] .. ".altconfig"
log(0, "Test saving to an alternate (%s) config file...", altname)
assert(container:save_config(altname))
assert(os.remove(altname))
end
function test_config_mount_entries()
local mntents
-- mount entries are a list type item
mntents = container:get_config_item("lxc.mount.entry")
log(0, "Mount entries:")
for _,v in ipairs(mntents) do
log(0, " %s", v)
end
end
function test_config_keys()
local keys
keys = container:get_keys()
log(0, "Top level keys:")
for k,v in pairs(keys) do
log(0, " %s = %s", k, v or "")
end
end
function test_config_network(net_nr)
log(0, "Test network %d config...", net_nr)
local netcfg
netcfg = container:get_keys("lxc.net." .. net_nr)
if (netcfg == nil) then
return
end
for k,v in pairs(netcfg) do
log(0, " %s = %s", k, v or "")
end
assert(netcfg["flags"] == "up")
assert(container:get_config_item("lxc.net."..net_nr..".type") == "veth")
end
function usage()
die("Usage: apitest <options>\n" ..
" -v|--verbose increase verbosity with each -v\n" ..
" -h|--help print help message\n" ..
" -n|--name name of container to use for testing\n" ..
" -c|--create create the test container anew\n" ..
" -l|--login do interactive login test\n" ..
" -t|--template template to use when creating test container\n"
)
end
local long_opts = {
verbose = "v",
help = "h",
name = "n",
create = "c",
template = "t",
}
optarg,optind = alt_getopt.get_opts (arg, "hvn:ct:", long_opts)
optarg["v"] = tonumber(optarg["v"]) or 0
optarg["n"] = optarg["n"] or "lua-apitest"
optarg["c"] = optarg["c"] or nil
optarg["t"] = optarg["t"] or "busybox"
if (optarg["h"] ~= nil) then
usage()
end
test_global_info()
test_container_new()
test_container_create()
test_container_stopped()
test_container_in_cfglist(true)
test_container_config_path()
test_config_items()
test_config_keys()
test_config_mount_entries()
test_config_network(0)
test_container_start()
test_container_started()
test_container_attach()
test_container_cgroup()
test_container_cmd()
test_container_freeze()
test_container_frozen()
test_container_unfreeze()
test_container_started()
test_container_shutdown()
test_container_stopped()
container:destroy()
test_container_in_cfglist(false)
log(0, "All tests passed")