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containers.rst: small docs improvement (#41792)

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Harmen Stoppels 2023-12-20 11:54:41 +01:00 committed by GitHub
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lib/spack/docs/containers.rst
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@ -41,7 +41,7 @@ just have to configure and OCI registry and run ``spack buildcache push``.
spack -e . mirror add --oci-username ... --oci-password ... container-registry oci://example.com/name/image
# Push the image
spack -e . buildcache push --base-image ubuntu:22.04 --tag my_env container-registry
spack -e . buildcache push --update-index --base-image ubuntu:22.04 --tag my_env container-registry
The resulting container image can then be run as follows:
@ -66,7 +66,8 @@ Linux distribution as long as the libc is compatible.
For convenience, Spack also turns the OCI registry into a :ref:`build cache <binary_caches_oci>`,
so that future ``spack install`` of the environment will simply pull the binaries from the
registry instead of doing source builds.
registry instead of doing source builds. The flag ``--update-index`` is needed to make Spack
take the build cache into account when concretizing.
.. note::