ClickHouse/docker/server/entrypoint.sh

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#!/bin/bash
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set -eo pipefail
shopt -s nullglob
DO_CHOWN=1
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if [ "${CLICKHOUSE_DO_NOT_CHOWN:-0}" = "1" ]; then
DO_CHOWN=0
fi
CLICKHOUSE_UID="${CLICKHOUSE_UID:-"$(id -u clickhouse)"}"
CLICKHOUSE_GID="${CLICKHOUSE_GID:-"$(id -g clickhouse)"}"
# support --user
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if [ "$(id -u)" = "0" ]; then
USER=$CLICKHOUSE_UID
GROUP=$CLICKHOUSE_GID
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if command -v gosu &> /dev/null; then
gosu="gosu $USER:$GROUP"
elif command -v su-exec &> /dev/null; then
gosu="su-exec $USER:$GROUP"
else
echo "No gosu/su-exec detected!"
exit 1
fi
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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if ! $gosu test -f "$CLICKHOUSE_CONFIG" -a -r "$CLICKHOUSE_CONFIG"; then
echo "Configuration file '$dir' isn't readable by user with id '$USER'"
exit 1
fi
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# get CH directories locations
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DATA_DIR="$(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 "$CLICKHOUSE_CONFIG" --key=logger.log || true)"
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LOG_DIR=""
if [ -n "$LOG_PATH" ]; then LOG_DIR="$(dirname "$LOG_PATH")"; fi
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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=""
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if [ -n "$ERROR_LOG_PATH" ]; then ERROR_LOG_DIR="$(dirname "$ERROR_LOG_PATH")"; fi
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FORMAT_SCHEMA_PATH="$(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:-}"
CLICKHOUSE_ACCESS_MANAGEMENT="${CLICKHOUSE_DEFAULT_ACCESS_MANAGEMENT:-0}"
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for dir in "$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"
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elif ! $gosu test -d "$dir" -a -w "$dir" -a -r "$dir"; then
echo "Necessary directory '$dir' isn't accessible by user with id '$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>
<access_management>${CLICKHOUSE_ACCESS_MANAGEMENT}</access_management>
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</${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
# 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)"
# Listen only on localhost until the initialization is done
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$gosu /usr/bin/clickhouse-server --config-file="$CLICKHOUSE_CONFIG" -- --listen_host=127.0.0.1 &
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pid="$!"
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# check if clickhouse is ready to accept connections
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# will try to send ping clickhouse via http_port (max 12 retries by default, with 1 sec timeout and 1 sec delay between retries)
tries=${CLICKHOUSE_INIT_TIMEOUT:-12}
while ! wget --spider -T 1 -q "http://127.0.0.1:$HTTP_PORT/ping" 2>/dev/null; do
if [ "$tries" -le "0" ]; then
echo >&2 'ClickHouse init process failed.'
exit 1
fi
tries=$(( tries-1 ))
sleep 1
done
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clickhouseclient=( clickhouse-client --multiquery --host "127.0.0.1" -u "$CLICKHOUSE_USER" --password "$CLICKHOUSE_PASSWORD" )
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echo
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# create default database, if defined
if [ -n "$CLICKHOUSE_DB" ]; then
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echo "$0: create database '$CLICKHOUSE_DB'"
"${clickhouseclient[@]}" -q "CREATE DATABASE IF NOT EXISTS $CLICKHOUSE_DB";
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fi
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for f in /docker-entrypoint-initdb.d/*; do
case "$f" in
*.sh)
if [ -x "$f" ]; then
echo "$0: running $f"
"$f"
else
echo "$0: sourcing $f"
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# shellcheck source=/dev/null
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. "$f"
fi
;;
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*.sql) echo "$0: running $f"; "${clickhouseclient[@]}" < "$f" ; echo ;;
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*.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
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exec $gosu /usr/bin/clickhouse-server --config-file="$CLICKHOUSE_CONFIG" "$@"
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fi
# Otherwise, we assume the user want to run his own process, for example a `bash` shell to explore this image
exec "$@"