Add Valkey Container (microsoft#11156)

.pipelines/containerSourceData/valkey/Dockerfile-Valkey

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+# Copyright (c) Microsoft Corporation.
+# Licensed under the MIT License.
+
+ARG BASE_IMAGE
+
+FROM $BASE_IMAGE
+
+@INCLUDE_MAIN_RUN_INSTRUCTION@
+
+RUN set -eux && \
+    valkey-cli --version && \
+    valkey-server --version && \
+    mkdir /data && \
+    chown valkey:valkey /data
+
+VOLUME /data
+WORKDIR /data
+
+COPY valkey-docker-entrypoint.sh /usr/local/bin/
+
+RUN chmod +x /usr/local/bin/valkey-docker-entrypoint.sh
+
+ENTRYPOINT ["/usr/local/bin/valkey-docker-entrypoint.sh"]
+
+EXPOSE 6379
+CMD ["valkey-server"]

.pipelines/containerSourceData/valkey/configuration-files/valkey-docker-entrypoint.sh

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+#!/bin/bash
+# Copyright (c) Microsoft Corporation.
+# Licensed under the MIT License.
+set -e
+
+# first arg is `-f` or `--some-option`
+# or first arg is `something.conf`
+if [ "${1#-}" != "$1" ] || [ "${1%.conf}" != "$1" ]; then
+    set -- valkey-server "$@"
+fi
+
+# allow the container to be started with `--user`
+if [ "$1" = 'valkey-server' -a "$(id -u)" = '0' ]; then
+    find . \! -user valkey -exec chown valkey '{}' +
+    exec setpriv --reuid=valkey --regid=valkey --init-groups --inh-caps=-all "$BASH_SOURCE" "$@"
+fi
+
+# set an appropriate umask (if one isn't set already)
+# - https://github.com/docker-library/redis/issues/305
+# - https://github.com/redis/redis/blob/bb875603fb7ff3f9d19aad906bd45d7db98d9a39/utils/systemd-redis_server.service#L37
+um="$(umask)"
+if [ "$um" = '0022' ]; then
+	umask 0077
+fi
+
+exec "$@" $VALKEY_EXTRA_FLAGS

.pipelines/containerSourceData/valkey/valkey.name

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+valkey

.pipelines/containerSourceData/valkey/valkey.pkg

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+valkey
+cronie
+util-linux