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Chapter 14. Setting up additional trusted certificate authorities for builds
Use the following sections to set up additional certificate authorities (CA) to be trusted by builds when pulling images from an image registry.
The procedure requires a cluster administrator to create a ConfigMap and add additional CAs as keys in the configmap.
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The ConfigMap must be created in the
openshift-confignamespace. domainis the key in the ConfigMap;valueis the PEM-encoded certificate.-
Each CA must be associated with a domain. The domain format is
hostname[..port].
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Each CA must be associated with a domain. The domain format is
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The ConfigMap name must be set in the
image.config.openshift.io/clustercluster scoped configuration resource’sspec.additionalTrustedCAfield.
14.1. Adding certificate authorities to the cluster 링크 복사링크가 클립보드에 복사되었습니다!
You can add certificate authorities (CAs) to the cluster for use when pushing and pulling images via the following procedure.
Prerequisites
- You must have cluster administrator privileges.
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You must have access to the registry’s public certificates, usually a
hostname/ca.crtfile located in the/etc/docker/certs.d/directory.
Procedure
Create a ConfigMap in the
openshift-confignamespace containing the trusted certificates for the registries that use self-signed certificates. For each CA file, ensure the key in the ConfigMap is the registry’s hostname in thehostname[..port]format:oc create configmap registry-cas -n openshift-config \ --from-file=myregistry.corp.com..5000=/etc/docker/certs.d/myregistry.corp.com:5000/ca.crt \ --from-file=otherregistry.com=/etc/docker/certs.d/otherregistry.com/ca.crt
$ oc create configmap registry-cas -n openshift-config \ --from-file=myregistry.corp.com..5000=/etc/docker/certs.d/myregistry.corp.com:5000/ca.crt \ --from-file=otherregistry.com=/etc/docker/certs.d/otherregistry.com/ca.crtCopy to Clipboard Copied! Toggle word wrap Toggle overflow Update the cluster image configuration:
oc patch image.config.openshift.io/cluster --patch '{"spec":{"additionalTrustedCA":{"name":"registry-cas"}}}' --type=merge$ oc patch image.config.openshift.io/cluster --patch '{"spec":{"additionalTrustedCA":{"name":"registry-cas"}}}' --type=mergeCopy to Clipboard Copied! Toggle word wrap Toggle overflow