Allow to run check on a specified Docker compose project
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2 changed files with 39 additions and 9 deletions
13
README.md
13
README.md
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@ -25,12 +25,13 @@ service nagios-nrpe-server reload
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```
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Usage : check_container_upgrade [-d] [-E /path/to/engine] [container1,...]
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-E [path] Force a specific engine (possible values: auto docker podman, default: auto)
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-x [container] Exclude specified container (could be repeat)
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-M [integer] Max number of container checks to run in parallel (default: 4, 0=no limit)
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-d Debug mode
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-X Enable bash tracing (=set -x)
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-h Show this message
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-E [path] Force a specific engine (possible values: auto docker podman, default: auto)
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-x [container] Exclude specified container (could be repeat)
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-M [integer] Max number of container checks to run in parallel (default: 4, 0=no limit)
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-f [docker-compose.yml] To check upgrade on docker compose project, specified the path of the docker-compose.yml file
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-d Debug mode
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-X Enable bash tracing (=set -x)
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-h Show this message
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```
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## Copyright
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@ -8,6 +8,7 @@
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ENGINE="auto"
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POSSIBLE_ENGINES=( "auto" "docker" "podman" )
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DOCKERCOMPOSE_FILE=""
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DEBUG=0
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MAX_PARALLEL_CHECKS=4
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ONLY_CONTAINERS=()
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@ -47,6 +48,7 @@ Usage : $(basename $0) [-d] [-E /path/to/engine] [container1,...]
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-E [path] Force a specific engine (possible values: ${POSSIBLE_ENGINES[@]}, default: $ENGINE)
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-x [container] Exclude specified container (could be repeat)
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-M [integer] Max number of container checks to run in parallel (default: $MAX_PARALLEL_CHECKS, 0=no limit)
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-f [docker-compose.yml] To check upgrade on docker compose project, specified the path of the docker-compose.yml file
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-d Debug mode
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-X Enable bash tracing (=set -x)
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-h Show this message
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@ -74,6 +76,10 @@ do
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in_array $ENGINE ${POSSIBLE_ENGINES[@]} || usage "Invalid engine $ENGINE"
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fi
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;;
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-f)
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((idx++))
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DOCKERCOMPOSE_FILE=${!idx}
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;;
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-x)
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((idx++))
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EXCLUDED_CONTAINERS+=( ${!idx} )
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@ -117,6 +123,12 @@ then
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debug "Auto-detected engine: $ENGINE"
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fi
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if [ -n "$DOCKERCOMPOSE_FILE" -a ! -e "$DOCKERCOMPOSE_FILE" ]
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then
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echo "UNKNOWN - Docker compose file not found ($DOCKERCOMPOSE_FILE)"
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exit 3
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fi
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EXIT_CODE=0
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declare -A CONTAINER_STATUS_FILE
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declare -A CONTAINER_PID
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@ -125,9 +137,26 @@ declare -A ERRORS
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CHECKED_CONTAINERS=( )
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debug "List running containers..."
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RUNNING_CONTAINERS=$($ENGINE ps --format '{{.Names}}' | tr '\n' ' ')
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if [ -n "$DOCKERCOMPOSE_FILE" ]
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then
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RUNNING_CONTAINERS=$($ENGINE compose -f $DOCKERCOMPOSE_FILE ps --format '{{.Service}}' | tr '\n' ' ')
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else
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RUNNING_CONTAINERS=$($ENGINE ps --format '{{.Names}}' | tr '\n' ' ')
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fi
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debug "Running containers: $RUNNING_CONTAINERS"
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function exec_in_container() {
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container=$1
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shift;
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if [ -n "$DOCKERCOMPOSE_FILE" ]
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then
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$ENGINE compose -f $DOCKERCOMPOSE_FILE exec $container $@
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return $?
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fi
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$ENGINE exec $container $@
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return $?
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}
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# Implement check inside a function to allow running it in parallel
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# Parameters : [container] [output file]
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function check_container() {
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@ -136,14 +165,14 @@ function check_container() {
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STATUS=""
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for check_plugin in ${CHECK_PLUGINS[@]}
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do
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$ENGINE exec $container test -e $check_plugin > /dev/null 2>&1
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exec_in_container $container test -e $check_plugin > /dev/null 2>&1
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if [ $? -ne 0 ]
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then
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debug "$container - Plugin $check_plugin not found"
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continue
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fi
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debug "$container - Plugin $check_plugin found, use it"
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STATUS="$($ENGINE exec $container ${CHECK_PLUGINS[${check_plugin}]} 2>&1)"
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STATUS="$(exec_in_container $container ${CHECK_PLUGINS[${check_plugin}]} 2>&1)"
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ex=$?
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debug "$container - Plugin output: $STATUS"
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debug "$container - Plugin exit code: $ex"
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