---
# This playbook creates an S3 bucket named after your cluster and configures the docker-registry service to use the bucket as its backend storage.
# Usage:
#  ansible-playbook s3_registry.yml -e clusterid="mycluster" -e aws_bucket="clusterid-docker" -e aws_region="us-east-1"
#
# The AWS access/secret keys should be the keys of a separate user (not your main user), containing only the necessary S3 access role.
# The 'clusterid' is the short name of your cluster.

- hosts: tag_clusterid_{{ clusterid }}:&tag_host-type_openshift-master
  remote_user: root
  gather_facts: False

  vars:
    aws_access_key: "{{ lookup('env', 'S3_ACCESS_KEY_ID') }}"
    aws_secret_key: "{{ lookup('env', 'S3_SECRET_ACCESS_KEY') }}"
    aws_bucket_name: "{{ aws_bucket | default(clusterid ~ '-docker') }}"
    aws_bucket_region: "{{ aws_region | default(lookup('env', 'S3_REGION') | default('us-east-1', true)) }}"
    aws_create_bucket: "{{ aws_create | default(True) }}"
    aws_tmp_path: "{{ aws_tmp_pathfile | default('/root/config.yml')}}"
    aws_delete_tmp_file: "{{ aws_delete_tmp | default(True) }}"

  tasks:

  - name: Check for AWS creds
    fail: 
      msg: "Couldn't find {{ item }} creds in ENV"
    when: "{{ item }} == ''"
    with_items:
    - aws_access_key
    - aws_secret_key

  - name: Scale down registry
    command: oc scale --replicas=0 dc/docker-registry

  - name: Create S3 bucket
    when: aws_create_bucket | bool
    local_action:
      module: s3 bucket="{{ aws_bucket_name }}" mode=create

  - name: Set up registry environment variable
    command: oc env dc/docker-registry REGISTRY_CONFIGURATION_PATH=/etc/registryconfig/config.yml

  - name: Generate docker registry config
    template: src="s3_registry.j2" dest="/root/config.yml" owner=root mode=0600

  - name: Determine if new secrets are needed
    command: oc get secrets
    register: secrets

  - name: Create registry secrets
    command: oc secrets new dockerregistry /root/config.yml
    when: "'dockerregistry' not in secrets.stdout"

  - name: Determine if service account contains secrets
    command: oc describe serviceaccount/registry
    register: serviceaccount

  - name: Add secrets to registry service account
    command: oc secrets add serviceaccount/registry secrets/dockerregistry
    when: "'dockerregistry' not in serviceaccount.stdout"

  - name: Determine if deployment config contains secrets
    command: oc volume dc/docker-registry --list
    register: dc

  - name: Add secrets to registry deployment config
    command: oc volume dc/docker-registry --add --name=dockersecrets -m /etc/registryconfig --type=secret --secret-name=dockerregistry
    when: "'dockersecrets' not in dc.stdout"

  - name: Wait for deployment config to take effect before scaling up
    pause: seconds=30

  - name: Scale up registry
    command: oc scale --replicas=1 dc/docker-registry

  - name: Delete temporary config file
    file: path={{ aws_tmp_path }} state=absent
    when: aws_delete_tmp_file | bool
