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Allow MinIO to load configurations from env file (#12706)

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docker-entrypoint.sh will load configuration values from
'config.env' file, this is useful when MinIO is deployed in Kubernetes
environments and want to avoid reading secrets from environment
variables

Signed-off-by: Lenin Alevski <alevsk.8772@gmail.com>
This commit is contained in:
Lenin Alevski 2021-07-14 16:55:59 -07:00 committed by GitHub
parent e8cbfa7af2
commit 92ffe5e5ef
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3 changed files with 27 additions and 5 deletions
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3
Dockerfile.release
View File

@ -17,7 +17,8 @@ ENV MINIO_ACCESS_KEY_FILE=access_key \
MINIO_ROOT_USER_FILE=access_key \
MINIO_ROOT_PASSWORD_FILE=secret_key \
MINIO_KMS_SECRET_KEY_FILE=kms_master_key \
MINIO_UPDATE_MINISIGN_PUBKEY="RWTx5Zr1tiHQLwG9keckT0c45M3AGeHD6IvimQHpyRywVWGbP1aVSGav"
MINIO_UPDATE_MINISIGN_PUBKEY="RWTx5Zr1tiHQLwG9keckT0c45M3AGeHD6IvimQHpyRywVWGbP1aVSGav" \
MINIO_CONFIG_ENV_FILE=config.env
COPY dockerscripts/verify-minio.sh /usr/bin/verify-minio.sh
COPY dockerscripts/docker-entrypoint.sh /usr/bin/docker-entrypoint.sh

3
Dockerfile.release.fips
View File

@ -17,7 +17,8 @@ ENV MINIO_ACCESS_KEY_FILE=access_key \
MINIO_ROOT_USER_FILE=access_key \
MINIO_ROOT_PASSWORD_FILE=secret_key \
MINIO_KMS_SECRET_KEY_FILE=kms_master_key \
MINIO_UPDATE_MINISIGN_PUBKEY="RWTx5Zr1tiHQLwG9keckT0c45M3AGeHD6IvimQHpyRywVWGbP1aVSGav"
MINIO_UPDATE_MINISIGN_PUBKEY="RWTx5Zr1tiHQLwG9keckT0c45M3AGeHD6IvimQHpyRywVWGbP1aVSGav" \
MINIO_CONFIG_ENV_FILE=config.env
COPY dockerscripts/verify-minio.sh /usr/bin/verify-minio.sh
COPY dockerscripts/docker-entrypoint.sh /usr/bin/docker-entrypoint.sh

26
dockerscripts/docker-entrypoint.sh
View File

@ -8,6 +8,20 @@ if [ "${1}" != "minio" ]; then
fi
fi
## look for specific a `config.env` file to load all the
## minio settings from
docker_minio_env() {
if [ -f "$MINIO_CONFIG_ENV_FILE" ]; then
config_env_file="${MINIO_CONFIG_ENV_FILE}"
else
config_env_file="/run/secrets/${MINIO_CONFIG_ENV_FILE}"
fi
if [ -f "$config_env_file" ]; then
# shellcheck source=/dev/null
. "${config_env_file}"
fi
}
## Look for docker secrets at given absolute path or in default documented location.
docker_secrets_env_old() {
if [ -f "$MINIO_ACCESS_KEY_FILE" ]; then
@ -73,15 +87,16 @@ docker_kms_secret_encryption_env() {
# su-exec to requested user, if service cannot run exec will fail.
docker_switch_user() {
if [ ! -z "${MINIO_USERNAME}" ] && [ ! -z "${MINIO_GROUPNAME}" ]; then
if [ ! -z "${MINIO_UID}" ] && [ ! -z "${MINIO_GID}" ]; then
if [ -n "${MINIO_USERNAME}" ] && [ -n "${MINIO_GROUPNAME}" ]; then
if [ -n "${MINIO_UID}" ] && [ -n "${MINIO_GID}" ]; then
groupadd -g "$MINIO_GID" "$MINIO_GROUPNAME" && \
useradd -u "$MINIO_UID" -g "$MINIO_GROUPNAME" "$MINIO_USERNAME"
else
groupadd "$MINIO_GROUPNAME" && \
useradd -g "$MINIO_GROUPNAME" "$MINIO_USERNAME"
fi
exec setpriv --reuid="${MINIO_USERNAME}" --regid="${MINIO_GROUPNAME}" --keep-groups "$@"
exec setpriv --reuid="${MINIO_USERNAME}" \
--regid="${MINIO_GROUPNAME}" --keep-groups "$@"
else
exec "$@"
fi
@ -96,5 +111,10 @@ docker_secrets_env
## Set kms encryption from secrets if necessary. Override
docker_kms_secret_encryption_env
## Set all config environment variables from 'config.env' if necessary.
## Overrides all previous settings and also overrides all
## environment values passed from 'podman run -e ENV=value'
docker_minio_env
## Switch to user if applicable.
docker_switch_user "$@"