第 5 章 Best practices for running containers by using local sources


You can access content hosted in an internal registry that requires a custom Transport Layer Security (TLS) root certificate, when running RHEL bootc images.

To install content to a container by using only local resources, you can use one of the following options:

  • Bind mounts: Override the container’s store with the host’s.
  • Derived image: Create a new container image with your custom certificates by building it using a Containerfile.

You can use the same techniques to run a bootc-image-builder container or a bootc container when appropriate.

Use bound mounts to override the container’s store with the host’s.

Procedure

  • Run a bootc-image-builder and use a bind mount, for example -v /etc/pki:/etc/pki, to override the container’s store with the host’s:

    # podman run \
      --rm \
      -it \
      --privileged \
      --pull=newer \
      --security-opt label=type:unconfined_t \
      -v ./output:/output \
      -v /etc/pki:/etc/pki \
      registry.redhat.io/rhel10/bootc-image-builder:latest \
      --type iso \
      --config /config.toml \
      quay.io/<namespace>/<image>:<tag>

Verification

  • The disk image build process should now be able to access internal certificates.
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