ClickHouse/docker/server/entrypoint.sh

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#!/bin/bash
DO_CHOWN=1
if [ "$CLICKHOUSE_DO_NOT_CHOWN" = 1 ]; then
DO_CHOWN=0
fi
CLICKHOUSE_UID="${CLICKHOUSE_UID:-"$(id -u clickhouse)"}"
CLICKHOUSE_GID="${CLICKHOUSE_GID:-"$(id -g clickhouse)"}"
# support --user
if [ x"$UID" == x0 ]; then
USER=$CLICKHOUSE_UID
GROUP=$CLICKHOUSE_GID
gosu="gosu $USER:$GROUP"
else
USER="$(id -u)"
GROUP="$(id -g)"
gosu=""
DO_CHOWN=0
fi
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# set some vars
CLICKHOUSE_CONFIG="${CLICKHOUSE_CONFIG:-/etc/clickhouse-server/config.xml}"
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# port is needed to check if clickhouse-server is ready for connections
HTTP_PORT="$(clickhouse extract-from-config --config-file $CLICKHOUSE_CONFIG --key=http_port)"
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# get CH directories locations
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DATA_DIR="$(clickhouse extract-from-config --config-file $CLICKHOUSE_CONFIG --key=path || true)"
TMP_DIR="$(clickhouse extract-from-config --config-file $CLICKHOUSE_CONFIG --key=tmp_path || true)"
USER_PATH="$(clickhouse extract-from-config --config-file $CLICKHOUSE_CONFIG --key=user_files_path || true)"
LOG_PATH="$(clickhouse extract-from-config --config-file $CLICKHOUSE_CONFIG --key=logger.log || true)"
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LOG_DIR="$(dirname $LOG_PATH || true)"
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ERROR_LOG_PATH="$(clickhouse extract-from-config --config-file $CLICKHOUSE_CONFIG --key=logger.errorlog || true)"
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ERROR_LOG_DIR="$(dirname $ERROR_LOG_PATH || true)"
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FORMAT_SCHEMA_PATH="$(clickhouse extract-from-config --config-file $CLICKHOUSE_CONFIG --key=format_schema_path || true)"
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CLICKHOUSE_USER="${CLICKHOUSE_USER:-default}"
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CLICKHOUSE_PASSWORD="${CLICKHOUSE_PASSWORD:-}"
CLICKHOUSE_DB="${CLICKHOUSE_DB:-}"
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for dir in "$DATA_DIR" \
"$ERROR_LOG_DIR" \
"$LOG_DIR" \
"$TMP_DIR" \
"$USER_PATH" \
"$FORMAT_SCHEMA_PATH"
do
# check if variable not empty
[ -z "$dir" ] && continue
# ensure directories exist
if ! mkdir -p "$dir"; then
echo "Couldn't create necessary directory: $dir"
exit 1
fi
if [ "$DO_CHOWN" = "1" ]; then
# ensure proper directories permissions
chown -R "$USER:$GROUP" "$dir"
elif [ "$(stat -c %u "$dir")" != "$USER" ]; then
echo "Necessary directory '$dir' isn't owned by user with id '$USER'"
exit 1
fi
done
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# if clickhouse user is defined - create it (user "default" already exists out of box)
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if [ -n "$CLICKHOUSE_USER" ] && [ "$CLICKHOUSE_USER" != "default" ] || [ -n "$CLICKHOUSE_PASSWORD" ]; then
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echo "$0: create new user '$CLICKHOUSE_USER' instead 'default'"
cat <<EOT > /etc/clickhouse-server/users.d/default-user.xml
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<yandex>
<!-- Docs: <https://clickhouse.tech/docs/en/operations/settings/settings_users/> -->
<users>
<!-- Remove default user -->
<default remove="remove">
</default>
<${CLICKHOUSE_USER}>
<profile>default</profile>
<networks>
<ip>::/0</ip>
</networks>
<password>${CLICKHOUSE_PASSWORD}</password>
<quota>default</quota>
</${CLICKHOUSE_USER}>
</users>
</yandex>
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EOT
fi
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if [ -n "$(ls /docker-entrypoint-initdb.d/)" ] || [ -n "$CLICKHOUSE_DB" ]; then
$gosu /usr/bin/clickhouse-server --config-file=$CLICKHOUSE_CONFIG &
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pid="$!"
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# check if clickhouse is ready to accept connections
# will try to send ping clickhouse via http_port (max 12 retries, with 1 sec delay)
if ! wget --spider --quiet --tries=12 --waitretry=1 --retry-connrefused "http://localhost:$HTTP_PORT/ping" ; then
echo >&2 'ClickHouse init process failed.'
exit 1
fi
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if [ ! -z "$CLICKHOUSE_PASSWORD" ]; then
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printf -v WITH_PASSWORD '%s %q' "--password" "$CLICKHOUSE_PASSWORD"
fi
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clickhouseclient=( clickhouse-client --multiquery -u $CLICKHOUSE_USER $WITH_PASSWORD )
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echo
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# create default database, if defined
if [ -n "$CLICKHOUSE_DB" ]; then
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echo "$0: create database '$CLICKHOUSE_DB'"
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"${clickhouseclient[@]}" "CREATE DATABASE IF NOT EXISTS $CLICKHOUSE_DB";
fi
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for f in /docker-entrypoint-initdb.d/*; do
case "$f" in
*.sh)
if [ -x "$f" ]; then
echo "$0: running $f"
"$f"
else
echo "$0: sourcing $f"
. "$f"
fi
;;
*.sql) echo "$0: running $f"; cat "$f" | "${clickhouseclient[@]}" ; echo ;;
*.sql.gz) echo "$0: running $f"; gunzip -c "$f" | "${clickhouseclient[@]}"; echo ;;
*) echo "$0: ignoring $f" ;;
esac
echo
done
if ! kill -s TERM "$pid" || ! wait "$pid"; then
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echo >&2 'Finishing of ClickHouse init process failed.'
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exit 1
fi
fi
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# if no args passed to `docker run` or first argument start with `--`, then the user is passing clickhouse-server arguments
if [[ $# -lt 1 ]] || [[ "$1" == "--"* ]]; then
exec $gosu /usr/bin/clickhouse-server --config-file=$CLICKHOUSE_CONFIG "$@"
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fi
# Otherwise, we assume the user want to run his own process, for example a `bash` shell to explore this image
exec "$@"