fixed a bug that prevented dispatching alarms to multiple email recipients

[netdata.git] / plugins.d / cgroup-name.sh

diff --git a/plugins.d/cgroup-name.sh b/plugins.d/cgroup-name.sh
index f0a89594ce32e7f50a0f9dd03aa9c9bf3bfc85c8..1c6f564b4c820dab31282939b63bb9ddcbd671c5 100755 (executable)
--- a/plugins.d/cgroup-name.sh
+++ b/plugins.d/cgroup-name.sh
@@ -1,6 +1,7 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 export PATH="${PATH}:/sbin:/usr/sbin:/usr/local/sbin"
+export LC_ALL=C
 
 NETDATA_CONFIG_DIR="${NETDATA_CONFIG_DIR-/etc/netdata}"
 CONFIG="${NETDATA_CONFIG_DIR}/cgroups-names.conf"
@@ -8,37 +9,70 @@ CGROUP="${1}"
 NAME=
 
 if [ -z "${CGROUP}" ]
-       then
-       echo >&2 "${0}: called without a cgroup name. Nothing to do."
-       exit 1
+    then
+    echo >&2 "${0}: called without a cgroup name. Nothing to do."
+    exit 1
 fi
 
 if [ -f "${CONFIG}" ]
-       then
-       NAME="$(cat "${CONFIG}" | grep "^${CGROUP} " | sed "s/[[:space:]]\+/ /g" | cut -d ' ' -f 2)"
-       if [ -z "${NAME}" ]
-               then
-               echo >&2 "${0}: cannot find cgroup '${CGROUP}' in '${CONFIG}'."
-       fi
-else
-       echo >&2 "${0}: configuration file '${CONFIG}' is not available."
+    then
+    NAME="$(grep "^${CGROUP} " "${CONFIG}" | sed "s/[[:space:]]\+/ /g" | cut -d ' ' -f 2)"
+    if [ -z "${NAME}" ]
+        then
+        echo >&2 "${0}: cannot find cgroup '${CGROUP}' in '${CONFIG}'."
+    fi
+#else
+#   echo >&2 "${0}: configuration file '${CONFIG}' is not available."
 fi
 
-if [ -z "${NAME}" -a "${CGROUP:0:7}" = "docker/" ]
-       then
-       NAME="$(docker ps | grep "^${CGROUP:7:12}" | sed "s/[[:space:]]\+/ /g" | cut -d ' ' -f 2)"
-       [ -z "${NAME}" ] && NAME="${CGROUP:0:19}"
-fi
+function get_name_classic {
+    local DOCKERID="$1"
+    echo >&2 "Running command: docker ps --filter=id=\"${DOCKERID}\" --format=\"{{.Names}}\""
+    NAME="$( docker ps --filter=id="${DOCKERID}" --format="{{.Names}}" )"
+    return 0
+}
+
+function get_name_api {
+    local DOCKERID="$1"
+    if [ ! -S "/var/run/docker.sock" ]
+        then
+        echo >&2 "Can't find /var/run/docker.sock"
+        return 1
+    fi
+    echo >&2 "Running API command: /containers/${DOCKERID}/json"
+    JSON=$(echo -e "GET /containers/${DOCKERID}/json HTTP/1.0\r\n" | nc -U /var/run/docker.sock | egrep '^{.*')
+    NAME=$(echo $JSON | jq -r .Name,.Config.Hostname | grep -v null | head -n1 | sed 's|^/||')
+    return 0
+}
 
 if [ -z "${NAME}" ]
-       then
-       if [ ${#CGROUP} -gt 20 ]
-               then
-               NAME="${CGROUP:0:20}"
-       else
-               NAME="${CGROUP}"
-       fi
+    then
+    if [[ "${CGROUP}" =~ ^.*docker[-_/\.][a-fA-F0-9]+[-_\.]?.*$ ]]
+        then
+        DOCKERID="$( echo "${CGROUP}" | sed "s|^.*docker[-_/]\([a-fA-F0-9]\+\)[-_\.]\?.*$|\1|" )"
+        # echo "DOCKERID=${DOCKERID}"
+
+        if [ ! -z "${DOCKERID}" -a \( ${#DOCKERID} -eq 64 -o ${#DOCKERID} -eq 12 \) ]
+            then
+            if hash docker 2>/dev/null
+                then
+                get_name_classic $DOCKERID
+            else
+                get_name_api $DOCKERID || get_name_classic $DOCKERID
+            fi
+            if [ -z "${NAME}" ]
+                then
+                echo >&2 "Cannot find the name of docker container '${DOCKERID}'"
+                NAME="${DOCKERID:0:12}"
+            else
+                echo >&2 "Docker container '${DOCKERID}' is named '${NAME}'"
+            fi
+        fi
+    fi
+
+    [ -z "${NAME}" ] && NAME="${CGROUP}"
+    [ ${#NAME} -gt 100 ] && NAME="${NAME:0:100}"
 fi
 
-echo >&2 "${0}: cgroup '${CGROUP}' is named as '${NAME}'"
+echo >&2 "${0}: cgroup '${CGROUP}' is called '${NAME}'"
 echo "${NAME}"