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- #!/bin/bash
- #
- # Copyright IBM Corp. All Rights Reserved.
- #
- # SPDX-License-Identifier: Apache-2.0
- # Based this file on https://github.com/docker-library/mongo/blob/master/3.4/docker-entrypoint.sh
- set -Eeuo pipefail
- if [ "${1:0:1}" = '-' ]; then
- set -- mongod "$@"
- fi
- originalArgOne="$1"
- # allow the container to be started with `--user`
- # all mongo* commands should be dropped to the correct user
- if [[ "$originalArgOne" == mongo* ]] && [ "$(id -u)" = '0' ]; then
- if [ "$originalArgOne" = 'mongod' ]; then
- chown -R mongodb /data/configdb /data/db
- fi
- # make sure we can write to stdout and stderr as "mongodb"
- # (for our "initdb" code later; see "--logpath" below)
- chown --dereference mongodb "/proc/$$/fd/1" "/proc/$$/fd/2" || :
- # ignore errors thanks to https://github.com/docker-library/mongo/issues/149
- exec gosu mongodb "$BASH_SOURCE" "$@"
- fi
- # you should use numactl to start your mongod instances, including the config servers, mongos instances, and any clients.
- # https://docs.mongodb.com/manual/administration/production-notes/#configuring-numa-on-linux
- if [[ "$originalArgOne" == mongo* ]]; then
- numa='numactl --interleave=all'
- if $numa true &> /dev/null; then
- set -- $numa "$@"
- fi
- fi
- # usage: file_env VAR [DEFAULT]
- # ie: file_env 'XYZ_DB_PASSWORD' 'example'
- # (will allow for "$XYZ_DB_PASSWORD_FILE" to fill in the value of
- # "$XYZ_DB_PASSWORD" from a file, especially for Docker's secrets feature)
- file_env() {
- local var="$1"
- local fileVar="${var}_FILE"
- local def="${2:-}"
- if [ "${!var:-}" ] && [ "${!fileVar:-}" ]; then
- echo >&2 "error: both $var and $fileVar are set (but are exclusive)"
- exit 1
- fi
- local val="$def"
- if [ "${!var:-}" ]; then
- val="${!var}"
- elif [ "${!fileVar:-}" ]; then
- val="$(< "${!fileVar}")"
- fi
- export "$var"="$val"
- unset "$fileVar"
- }
- # see https://github.com/docker-library/mongo/issues/147 (mongod is picky about duplicated arguments)
- _mongod_hack_have_arg() {
- local checkArg="$1"; shift
- local arg
- for arg; do
- case "$arg" in
- "$checkArg"|"$checkArg"=*)
- return 0
- ;;
- esac
- done
- return 1
- }
- declare -a mongodHackedArgs
- # _mongod_hack_ensure_arg '--some-arg' "$@"
- # set -- "${mongodHackedArgs[@]}"
- _mongod_hack_ensure_arg() {
- local ensureArg="$1"; shift
- mongodHackedArgs=( "$@" )
- if ! _mongod_hack_have_arg "$ensureArg" "$@"; then
- mongodHackedArgs+=( "$ensureArg" )
- fi
- }
- # _mongod_hack_ensure_arg_val '--some-arg' 'some-val' "$@"
- # set -- "${mongodHackedArgs[@]}"
- _mongod_hack_ensure_arg_val() {
- local ensureArg="$1"; shift
- local ensureVal="$1"; shift
- mongodHackedArgs=()
- while [ "$#" -gt 0 ]; do
- local arg="$1"; shift
- case "$arg" in
- "$ensureArg")
- shift # also skip the value
- continue
- ;;
- "$ensureArg"=*)
- # value is already included
- continue
- ;;
- esac
- mongodHackedArgs+=( "$arg" )
- done
- mongodHackedArgs+=( "$ensureArg" "$ensureVal" )
- }
- # TODO what do to about "--config" ? :(
- if [ "$originalArgOne" = 'mongod' ]; then
- file_env 'MONGO_INITDB_ROOT_USERNAME'
- file_env 'MONGO_INITDB_ROOT_PASSWORD'
- # pre-check a few factors to see if it's even worth bothering with initdb
- shouldPerformInitdb=
- if [ "$MONGO_INITDB_ROOT_USERNAME" ] && [ "$MONGO_INITDB_ROOT_PASSWORD" ]; then
- # if we have a username/password, let's set "--auth"
- _mongod_hack_ensure_arg '--auth' "$@"
- set -- "${mongodHackedArgs[@]}"
- shouldPerformInitdb='true'
- elif [ "$MONGO_INITDB_ROOT_USERNAME" ] || [ "$MONGO_INITDB_ROOT_PASSWORD" ]; then
- cat >&2 <<-'EOF'
- error: missing 'MONGO_INITDB_ROOT_USERNAME' or 'MONGO_INITDB_ROOT_PASSWORD'
- both must be specified for a user to be created
- EOF
- exit 1
- fi
- if [ -z "$shouldPerformInitdb" ]; then
- # if we've got any /docker-entrypoint-initdb.d/* files to parse later, we should initdb
- for f in /docker-entrypoint-initdb.d/*; do
- case "$f" in
- *.sh|*.js) # this should match the set of files we check for below
- shouldPerformInitdb="$f"
- break
- ;;
- esac
- done
- fi
- # check for a few known paths (to determine whether we've already initialized and should thus skip our initdb scripts)
- if [ -n "$shouldPerformInitdb" ]; then
- for path in \
- /data/db/WiredTiger \
- /data/db/journal \
- /data/db/local.0 \
- /data/db/storage.bson \
- ; do
- if [ -e "$path" ]; then
- shouldPerformInitdb=
- break
- fi
- done
- fi
- if [ -n "$shouldPerformInitdb" ]; then
- if _mongod_hack_have_arg --config "$@"; then
- echo >&2
- echo >&2 'warning: database is not yet initialized, and "--config" is specified'
- echo >&2 ' the initdb database startup might fail as a result!'
- echo >&2
- fi
- pidfile="$(mktemp)"
- trap "rm -f '$pidfile'" EXIT
- _mongod_hack_ensure_arg_val --bind_ip 127.0.0.1 "$@"
- _mongod_hack_ensure_arg_val --port 27017 "${mongodHackedArgs[@]}"
- sslMode="$(_mongod_hack_have_arg '--sslPEMKeyFile' "$@" && echo 'allowSSL' || echo 'disabled')" # "BadValue: need sslPEMKeyFile when SSL is enabled" vs "BadValue: need to enable SSL via the sslMode flag when using SSL configuration parameters"
- _mongod_hack_ensure_arg_val --sslMode "$sslMode" "${mongodHackedArgs[@]}"
- if stat "/proc/$$/fd/1" > /dev/null && [ -w "/proc/$$/fd/1" ]; then
- # https://github.com/mongodb/mongo/blob/38c0eb538d0fd390c6cb9ce9ae9894153f6e8ef5/src/mongo/db/initialize_server_global_state.cpp#L237-L251
- # https://github.com/docker-library/mongo/issues/164#issuecomment-293965668
- _mongod_hack_ensure_arg_val --logpath "/proc/$$/fd/1" "${mongodHackedArgs[@]}"
- else
- echo >&2 "warning: initdb logs cannot write to '/proc/$$/fd/1', so they are in '/data/db/docker-initdb.log' instead"
- _mongod_hack_ensure_arg_val --logpath /data/db/docker-initdb.log "${mongodHackedArgs[@]}"
- fi
- _mongod_hack_ensure_arg --logappend "${mongodHackedArgs[@]}"
- _mongod_hack_ensure_arg_val --pidfilepath "$pidfile" "${mongodHackedArgs[@]}"
- "${mongodHackedArgs[@]}" --fork
- mongo=( mongo --host 127.0.0.1 --port 27017 --quiet )
- # check to see that our "mongod" actually did start up (catches "--help", "--version", MongoDB 3.2 being silly, slow prealloc, etc)
- # https://jira.mongodb.org/browse/SERVER-16292
- tries=30
- while true; do
- if ! { [ -s "$pidfile" ] && ps "$(< "$pidfile")" &> /dev/null; }; then
- # bail ASAP if "mongod" isn't even running
- echo >&2
- echo >&2 "error: $originalArgOne does not appear to have stayed running -- perhaps it had an error?"
- echo >&2
- exit 1
- fi
- if "${mongo[@]}" 'admin' --eval 'quit(0)' &> /dev/null; then
- # success!
- break
- fi
- (( tries-- ))
- if [ "$tries" -le 0 ]; then
- echo >&2
- echo >&2 "error: $originalArgOne does not appear to have accepted connections quickly enough -- perhaps it had an error?"
- echo >&2
- exit 1
- fi
- sleep 1
- done
- if [ "$MONGO_INITDB_ROOT_USERNAME" ] && [ "$MONGO_INITDB_ROOT_PASSWORD" ]; then
- rootAuthDatabase='admin'
- "${mongo[@]}" "$rootAuthDatabase" <<-EOJS
- db.createUser({
- user: $(jq --arg 'user' "$MONGO_INITDB_ROOT_USERNAME" --null-input '$user'),
- pwd: $(jq --arg 'pwd' "$MONGO_INITDB_ROOT_PASSWORD" --null-input '$pwd'),
- roles: [ { role: 'root', db: $(jq --arg 'db' "$rootAuthDatabase" --null-input '$db') } ]
- })
- EOJS
- mongo+=(
- --username="$MONGO_INITDB_ROOT_USERNAME"
- --password="$MONGO_INITDB_ROOT_PASSWORD"
- --authenticationDatabase="$rootAuthDatabase"
- )
- fi
- export MONGO_INITDB_DATABASE="${MONGO_INITDB_DATABASE:-test}"
- echo
- for f in /docker-entrypoint-initdb.d/*; do
- case "$f" in
- *.sh) echo "$0: running $f"; . "$f" ;;
- *.js) echo "$0: running $f"; "${mongo[@]}" "$MONGO_INITDB_DATABASE" "$f"; echo ;;
- *) echo "$0: ignoring $f" ;;
- esac
- echo
- done
- "$@" --pidfilepath="$pidfile" --shutdown
- rm "$pidfile"
- trap - EXIT
- echo
- echo 'MongoDB init process complete; ready for start up.'
- echo
- fi
- unset "${!MONGO_INITDB_@}"
- fi
- exec "$@"
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