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35 lines
1.3 KiB
Plaintext
35 lines
1.3 KiB
Plaintext
// Module included in the following assemblies:
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//
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// * builds/setting-up-trusted-ca
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:_content-type: PROCEDURE
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[id="configmap-adding-ca_{context}"]
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= Adding certificate authorities to the cluster
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ifdef::openshift-enterprise,openshift-webscale,openshift-origin[]
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You can add certificate authorities (CA) to the cluster for use when pushing and pulling images with the following procedure.
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.Prerequisites
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* You must have cluster administrator privileges.
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* You must have access to the public certificates of the registry, usually a `hostname/ca.crt` file located in the `/etc/docker/certs.d/` directory.
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.Procedure
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. Create a `ConfigMap` in the `openshift-config` namespace containing the trusted certificates for the registries that use self-signed certificates. For each CA file, ensure the key in the `ConfigMap` is the hostname of the registry in the `hostname[..port]` format:
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+
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[source,terminal]
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----
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$ oc create configmap registry-cas -n openshift-config \
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--from-file=myregistry.corp.com..5000=/etc/docker/certs.d/myregistry.corp.com:5000/ca.crt \
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--from-file=otherregistry.com=/etc/docker/certs.d/otherregistry.com/ca.crt
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----
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. Update the cluster image configuration:
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+
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[source,terminal]
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----
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$ oc patch image.config.openshift.io/cluster --patch '{"spec":{"additionalTrustedCA":{"name":"registry-cas"}}}' --type=merge
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----
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endif::[]
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