Chapter 5. Adding TLS Certificates to the Red Hat Quay Container

1. View certificate to be added to the container

   $ cat storage.crt
   -----BEGIN CERTIFICATE-----
   MIIDTTCCAjWgAwIBAgIJAMVr9ngjJhzbMA0GCSqGSIb3DQEBCwUAMD0xCzAJBgNV
   [...]
   -----END CERTIFICATE-----

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2. Create certs directory and copy certificate there

   $ mkdir -p quay/config/extra_ca_certs
   $ cp storage.crt quay/config/extra_ca_certs/
   $ tree quay/config/
   ├── config.yaml
   ├── extra_ca_certs
   │   ├── storage.crt

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3. Obtain the Quay container’s CONTAINER ID with podman ps:

   $ sudo podman ps
   CONTAINER ID        IMAGE                                COMMAND                  CREATED             STATUS              PORTS
   5a3e82c4a75f        <registry>/<repo>/quay:v3.10.9 "/sbin/my_init"          24 hours ago        Up 18 hours         0.0.0.0:80->80/tcp, 0.0.0.0:443->443/tcp, 443/tcp   grave_keller

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4. Restart the container with that ID:

   $ sudo podman restart 5a3e82c4a75f

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5. Examine the certificate copied into the container namespace:

   $ sudo podman exec -it 5a3e82c4a75f cat /etc/ssl/certs/storage.pem
   -----BEGIN CERTIFICATE-----
   MIIDTTCCAjWgAwIBAgIJAMVr9ngjJhzbMA0GCSqGSIb3DQEBCwUAMD0xCzAJBgNV

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Procedure

1. Base64 encode the contents of an SSL/TLS certificate by entering the following command:

   $ cat ca.crt | base64 -w 0

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   Example output

   ...c1psWGpqeGlPQmNEWkJPMjJ5d0pDemVnR2QNCnRsbW9JdEF4YnFSdVd3PT0KLS0tLS1FTkQgQ0VSVElGSUNBVEUtLS0tLQo=

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2. Enter the following kubectl command to edit the quay-enterprise-config-secret file:

   $ kubectl --namespace quay-enterprise edit secret/quay-enterprise-config-secret

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3. Add an entry for the certificate and paste the full base64 encoded stringer under the entry. For example:

     custom-cert.crt:
   c1psWGpqeGlPQmNEWkJPMjJ5d0pDemVnR2QNCnRsbW9JdEF4YnFSdVd3PT0KLS0tLS1FTkQgQ0VSVElGSUNBVEUtLS0tLQo=

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4. Use the kubectl delete command to remove all Red Hat Quay pods. For example:

   $ kubectl delete pod quay-operator.v3.7.1-6f9d859bd-p5ftc quayregistry-clair-postgres-7487f5bd86-xnxpr quayregistry-quay-app-upgrade-xq2v6  quayregistry-quay-database-859d5445ff-cqthr quayregistry-quay-redis-84f888776f-hhgms

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   Afterwards, the Red Hat Quay deployment automatically schedules replace pods with the new certificate data.