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ppetko/docker-status.sh

Last active June 2, 2022 13:04
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  1. ppetko renamed this gist Jan 28, 2019. 1 changed file with 1 addition and 1 deletion.
    2 changes: 1 addition & 1 deletion docker-service-status.sh → docker-status.sh
    View file
    Original file line number Diff line number Diff line change
    @@ -1,7 +1,7 @@
    #!/bin/bash

    #####################################################################################
    ## docker-service-status.sh - Bash script that checks status for docker swarm services and nodes.
    ## docker-status.sh - Bash script that checks status for docker swarm services and nodes.
    ## Functions:
    # check_replication - Check if all stacks are running in service.
    # check_swarm_nodes - Check if all nodes are reacheble and healthy.
  2. ppetko created this gist Jan 28, 2019.
    128 changes: 128 additions & 0 deletions docker-service-status.sh
    View file
    Original file line number Diff line number Diff line change
    @@ -0,0 +1,128 @@
    #!/bin/bash

    #####################################################################################
    ## docker-service-status.sh - Bash script that checks status for docker swarm services and nodes.
    ## Functions:
    # check_replication - Check if all stacks are running in service.
    # check_swarm_nodes - Check if all nodes are reacheble and healthy.
    # check_swarm_services - Check if any of the services failed.
    #####################################################################################

    set tabstop=8 softtabstop=0 expandtab shiftwidth=4 smarttab

    set -o pipefail

    STATE_OK=0
    STATE_WARNING=1
    STATE_CRITICAL=2
    STATE_UNKNOWN=3

    warning=0
    critical=0
    unknown=0
    state_replicated=0
    state_swarm=0

    if [ "$(whoami)" != "root" ]; then
    echo "Root privileges are required to run this, try running with sudo..."
    exit $STATE_CRITICAL
    fi

    if [ "x$(which docker)" == "x" ]; then
    echo "UNKNOWN - Missing docker binary"
    exit $STATE_UNKNOWN
    fi

    systemctl status docker > /dev/null 2>&1
    if [ "${?}" != 0 ]; then
    echo "Docker daemon is not running"
    exit ${STATE_CRITICAL}
    fi

    which json_reformat > /dev/null 2>&1
    if [ "${?}" -ne 0 ]; then
    echo "json_reformat is not installed"
    exit ${STATE_CRITICAL}
    fi

    usage() {
    echo "Usage:
    $0 swarm_check
    $0 check_replication
    $0 check_swarm_services"

    return $STATE_WARNING
    }

    function isManager(){
    isManaget=`docker info | grep 'Is Manager'| awk -F' ' '{print $3}'`
    if [ "${isManaget}" == "false" ]; then
    echo "OK - Not a swarm master"
    exit 0
    fi
    }

    function check_swarm_nodes(){
    isManager
    for NODE in `docker node ls | egrep 'Leader|Reachable|Reachable'| awk '{print $1}'`;do
    ManagerStatus=$(docker node inspect --format="{{.ManagerStatus.Reachability}}" $NODE) > /dev/null 2>&1
    if [ "$ManagerStatus" == "Unavailable" ]; then
    let "state_swarm=state_swarm+1"
    fi
    done

    if [ "$state_swarm" -gt 0 ]; then
    echo "CRITICAL - Not all swarm nodes are healthy"
    else
    echo "OK - All swarm nodes are healthy"
    fi
    return $state_swarm
    }

    function check_replication(){
    isManager
    for i in `docker service ls -q`; do
    replicated=`docker service inspect --pretty $i | grep -i "Service Mode" | awk '{print $3}'`
    if [ "${replicated}" == "Replicated" ]; then
    replicas=`docker service inspect --pretty $i | grep -i replicas | awk '{print $2}'`
    running_replicas=`docker service ps $i |grep -i running | wc -l`
    if [ ${replicas} -ne "${running_replicas}" ]; then
    let "state_replicated=state_replicated+1"
    fi
    fi
    done

    if [ "$state_replicated" -gt 0 ]; then
    echo "CRITICAL - Not all services are replicated"
    else
    echo "OK - All services are replicated"
    fi
    return $state_replicated
    }

    function check_swarm_services(){
    isManager
    for i in `docker service ls -q`; do
    docker service ps $i | grep -E "Failed [0-9]* second" > /dev/null 2&1
    if [ "${?}" -ne 0 ]; then
    echo "CRITICAL - Some services failed to start"
    fi
    done
    }

    ### Main
    case "$1" in
    check_replication)
    check_replication
    ;;
    swarm_check)
    check_swarm_nodes
    ;;
    swarm_service_check)
    check_swarm_services
    ;;
    *)
    usage
    exit $?
    esac
    ### END