Add tag/untag commands for container repositories

fixes: #423

CHANGES/423.feature

@@ -0,0 +1 @@
+Added tag/untag commands to add and remove tags from images in container repositories.

pulpcore/cli/container/context.py

@@ -83,13 +83,15 @@ class PulpContainerRepositoryContext(PulpRepositoryContext):
     CAPABILITIES = {
         "sync": [PluginRequirement("container")],
         "pulpexport": [PluginRequirement("container", "2.8.0.dev")],
+        "tag": [PluginRequirement("container", "2.3.0")],
     }
 
 
 class PulpContainerPushRepositoryContext(PulpRepositoryContext):
     HREF = "container_container_push_repository_href"
     ID_PREFIX = "repositories_container_container_push"
     VERSION_CONTEXT = PulpContainerPushRepositoryVersionContext
+    CAPABILITIES = {"tag": [PluginRequirement("container", "2.3.0")]}
 
 
 registered_repository_contexts["container:container"] = PulpContainerRepositoryContext

pulpcore/cli/container/repository.py

@@ -1,3 +1,4 @@
+import re
 from typing import Any, Dict
 
 import click
@@ -37,6 +38,16 @@
 
 translation = get_translation(__name__)
 _ = translation.gettext
+VALID_TAG_REGEX = r"^[A-Za-z0-9][A-Za-z0-9._-]*$"
+
+
+def _tag_callback(ctx: click.Context, param: click.Parameter, value: str) -> str:
+    if len(value) == 0:
+        raise click.ClickException("Please pass a non empty tag name.")
+    if re.match(VALID_TAG_REGEX, value) is None:
+        raise click.ClickException("Please pass a valid tag.")
+
+    return value
 
 
 remote_option = resource_option(
@@ -122,3 +133,46 @@ def sync(
         href=repository_href,
         body=body,
     )
+
+
+@repository.command(name="tag")
+@name_option
+@href_option
+@click.option("--tag", help=_("Name to tag an image with"), required=True, callback=_tag_callback)
+@click.option("--digest", help=_("SHA256 digest of the Manifest file"), required=True)
+@pass_repository_context
+def add_tag(
+    repository_ctx: PulpRepositoryContext,
+    digest: str,
+    tag: str,
+) -> None:
+    if not repository_ctx.capable("tag"):
+        raise click.ClickException(_("pulp_container 2.3.0 is required to tag images"))
+
+    digest = digest.strip()
+    if not digest.startswith("sha256:"):
+        digest = f"sha256:{digest}"
+    if len(digest) != 71:  # len("sha256:") + 64
+        raise click.ClickException("Improper SHA256, please provide a valid 64 digit digest.")
+
+    repository_ctx.call(
+        "tag",
+        parameters={repository_ctx.HREF: repository_ctx.pulp_href},
+        body={"tag": tag, "digest": digest},
+    )
+
+
+@repository.command(name="untag")
+@name_option
+@href_option
+@click.option("--tag", help=_("Name of tag to remove"), required=True, callback=_tag_callback)
+@pass_repository_context
+def remove_tag(repository_ctx: PulpRepositoryContext, tag: str) -> None:
+    if not repository_ctx.capable("tag"):
+        raise click.ClickException(_("pulp_container 2.3.0 is required to untag images"))
+
+    repository_ctx.call(
+        "untag",
+        parameters={repository_ctx.HREF: repository_ctx.pulp_href},
+        body={"tag": tag},
+    )

tests/scripts/pulp_container/test_tag.sh

@@ -0,0 +1,27 @@
+#!/bin/bash
+
+# shellcheck source=tests/scripts/config.source
+. "$(dirname "$(dirname "$(realpath "$0")")")"/config.source
+
+pulp debug has-plugin --name "container" || exit 3
+
+cleanup() {
+  pulp container repository destroy --name "cli_test_container_repository" || true
+  pulp container remote destroy --name "cli_test_container_remote" || true
+  pulp orphan cleanup || true
+}
+trap cleanup EXIT
+
+# Prepare
+pulp container remote create --name "cli_test_container_remote" --url "$CONTAINER_REMOTE_URL" --upstream-name "$CONTAINER_IMAGE"
+pulp container repository create --name "cli_test_container_repository"
+pulp container repository sync --name "cli_test_container_repository" --remote "cli_test_container_remote"
+manifest_digest="$(pulp container content -t manifest list | tr '\r\n' ' ' | jq -r .[0].digest)"
+
+expect_succ pulp container repository tag --name "cli_test_container_repository" --tag "test_tag" --digest "$manifest_digest"
+expect_succ pulp container repository version show --repository "cli_test_container_repository" --version "2"
+test "$(echo "$OUTPUT" | jq -r '.content_summary.added["container.tag"].count')" -eq "1"
+
+expect_succ pulp container repository untag --name "cli_test_container_repository" --tag "test_tag"
+expect_succ pulp container repository version show --repository "cli_test_container_repository" --version "3"
+test "$(echo "$OUTPUT" | jq -r '.content_summary.removed["container.tag"].count')" -eq "1"