Kovács Zoltán
005d0503e2
* docker-compose-v2 compatibility * MySQL/MariaDB dual comaptibility ACME client minor upgrade
175 lines
6.2 KiB
Bash
Executable File
175 lines
6.2 KiB
Bash
Executable File
#!/bin/bash
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#
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# A simple wrapper script to rotate the service's logs. Creates a little bit
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# crafted logrotate configuration (if it doesn't exist yet) and calls the
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# standard logrotate.
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#
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# Uses the copytruncate utility which must be available on path.
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# Doesn't rotate logs for stopped services.
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#
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# Author: Kovács Zoltán <kovacs.zoltan@smartfront.hu>
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# Kovács Zoltán <kovacsz@marcusconsulting.hu>
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# License: GNU/GPL v3+ (https://www.gnu.org/licenses/gpl-3.0.en.html)
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# 2024-08-24 v1.1
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# new: docker-compose v2 compatibility - tested with Ubuntu 24.04 LTS.
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# 2023-06-18 v1.0
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# new: forked from the "Smartfront's DOCKER_skeleton" repository.
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# 2021-09-14 v0.2
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# add: Rotates the web logs (if any) as well.
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# 2021-09-02 v0.1 Initial release
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# Accepted environment variables and their defaults.
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PAR_BASEDIR=${PAR_BASEDIR:-""} # Service's base folder
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PAR_CONFDIR=${PAR_CONFDIR:-""} # Folder containing configs
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PAR_LOGDIR=${PAR_LOGDIR:-""} # Folder containing logs
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# Other initialisations.
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CONFDIR="configs" # Folder containing configs
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LOGDIR="logs" # Folder containing logs
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YMLFILE="docker-compose.yml"
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# Messages.
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MSG_MISSINGDEP="Fatal: missing dependency"
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# Basic environment settings.
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LANG=C
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LC_ALL=C
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# We need also the sbin directories.
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if ! [[ "$PATH" =~ '/sbin:' ]]; then
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PATH="$PATH:/usr/local/sbin:/usr/sbin:/sbin"; fi
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# Checks the dependencies.
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TR=$(which tr 2>/dev/null)
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if [ -z "$TR" ]; then echo "$MSG_MISSINGDEP tr."; exit 1 ; fi
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for item in basename date dirname docker logrotate readlink
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do
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if [ -n "$(which $item)" ]
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then export $(echo $item | "$TR" '[:lower:]' '[:upper:]' | "$TR" '-' '_')=$(which $item)
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else echo "$MSG_MISSINGDEP $item." >&2; exit 1; fi
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done
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# All dependencies are available via "$THECOMMAND" (upper case) call.
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#
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# Let's find which version of docker-compose is installed.
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if [ $($DOCKER compose version 2>&1 >/dev/null; echo $?) -eq 0 ]; then
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# We'll use v2 if it is available.
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DOCKER_COMPOSE="$DOCKER"
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commandstring="compose"
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else
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# Otherwise falling back to v1.
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DOCKER_COMPOSE="$(which docker-compose)"
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commandstring=""
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fi
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# One of the two is mandatory.
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if [ -z "$DOCKER_COMPOSE" ];then echo "$MSG_MISSINGDEP docker-compose" >&2; exit 1; fi
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# Below docker-compose should be called as "$DOCKER_COMPOSE" $commandstring sequence.
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# Where I'm?
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# https://gist.github.com/TheMengzor/968e5ea87e99d9c41782
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SOURCE="${BASH_SOURCE[0]}"
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while [ -h "$SOURCE" ]; do
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# resolve $SOURCE until the file is no longer a symlink
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SCRPATH="$( cd -P "$( "$DIRNAME" "$SOURCE" )" && pwd )" #"
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SOURCE="$("$READLINK" "$SOURCE")"
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# if $SOURCE was a relative symlink, we need to resolve it
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# relative to the path where the symlink file was located
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[[ $SOURCE != /* ]] && SOURCE="$SCRPATH/$SOURCE"
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done; SCRPATH="$( cd -P "$( "$DIRNAME" "$SOURCE" )" && pwd )" #"
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SCRFILE="$("$BASENAME" "$(test -L "$0" && "$READLINK" "$0" || echo "$0")")" #"
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# Searches the base folder, containing a docker-compose.yml file.
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# Called from the base folder (./)?
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BASE_DIR="$PAR_BASEDIR"
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TEST_DIR="$SCRPATH"
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[[ -z "$BASE_DIR" ]] && [[ -r "$TEST_DIR/$YMLFILE" ]] && BASE_DIR="$TEST_DIR"
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# Called from ./tools?
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TEST_DIR="$("$DIRNAME" "$TEST_DIR")"
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[[ -z "$BASE_DIR" ]] && [[ -r "$TEST_DIR/$YMLFILE" ]] && BASE_DIR="$TEST_DIR"
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# Called from ./tools/*.d?
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TEST_DIR="$("$DIRNAME" "$TEST_DIR")"
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[[ -z "$BASE_DIR" ]] && [[ -r "$TEST_DIR/$YMLFILE" ]] && BASE_DIR="$TEST_DIR"
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# On failure gives it up here.
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if [ -z "$BASE_DIR" -o ! -r "$BASE_DIR/$YMLFILE" ]; then
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echo "$MSG_MISSINGYML" >&2; exit 1
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fi
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# Sets the absolute paths.
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CONFDIR="${PAR_CONFDIR:-$BASE_DIR/$CONFDIR}"
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CONFFILE="$CONFDIR/.${SCRFILE%.*}.conf"
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STATEFILE="$CONFDIR/.${SCRFILE%.*}.state"
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LOGDIR="${PAR_LOGDIR:-$BASE_DIR/$LOGDIR}"
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# Doesn't rotate logs for stopped services.
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[[ -z "$(cd "$BASE_DIR"; "$DOCKER_COMPOSE" $commandstring ps --services --filter "status=running")" ]] \
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&& exit 0
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# Locates the worker script.
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WORKERSCRIPT="$SCRPATH/copytruncate"
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[[ ! -x "$WORKERSCRIPT" ]] && WORKERSCRIPT="$(which copytruncate)"
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[[ ! -x "$WORKERSCRIPT" ]] \
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&& echo -e "$MSG_MISSINGDEP $WORKERSCRIPT." >&2 \
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&& exit 1
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# Creates the configuration if it doesn't exist yet.
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if [ ! -e "$CONFFILE" ]; then
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cat > "$CONFFILE" << EOF
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$LOGDIR/*.log {
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missingok
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daily
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rotate 30
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# Must be consistent with prerotate script's settings!
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dateext
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dateyesterday
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dateformat %Y-%m-%d.
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extension log
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compress
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# We'll use our own copytruncate script, because:
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# * we haven't permission to change ownership, so the built-in copytruncate
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# method would fail (this is a bug in logrotate, I think);
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# * we haven't permission to reload the service, so the create new log method
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# doesn't work - the service would still write to the already rotated file.
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# The custom script:
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# * copytruncates files having (by default) .log extesion and compresses the copy
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# (and returns with 1 exit code, thus, the logrotate will skip this file).
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# * does nothing with files having any other extensions - e.g .1, .2 and so on
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# (and returns with 0 exit code, thus, the logrotate can process this file);
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prerotate
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$WORKERSCRIPT \$1
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endscript
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# Only if the prerotate script didn't process it yet.
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copytruncate
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}
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$LOGDIR/web/*.log {
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missingok
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daily
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rotate 60
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# Must be consistent with prerotate script's settings!
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dateext
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dateyesterday
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dateformat %Y-%m-%d.
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extension log
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compress
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# We'll use our own copytruncate script, because:
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# * we haven't permission to change ownership, so the built-in copytruncate
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# method would fail (this is a bug in logrotate, I think);
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# * we haven't permission to reload the service, so the create new log method
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# doesn't work - the service would still write to the already rotated file.
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# The custom script:
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# * copytruncates files having (by default) .log extesion and compresses the copy
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# (and returns with 1 exit code, thus, the logrotate will skip this file).
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# * does nothing with files having any other extensions - e.g .1, .2 and so on
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# (and returns with 0 exit code, thus, the logrotate can process this file);
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prerotate
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$WORKERSCRIPT \$1
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endscript
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# Only if the prerotate script didn't process it yet.
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copytruncate
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}
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EOF
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fi
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# Rotates the logs.
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"$LOGROTATE" -s "$STATEFILE" "$CONFFILE"
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# That's all, Folks! :)
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