use docker binary if exists, fallback on docker api if exists
Tit Petric committed
May 6, 2016 at 13:45 UTC
1941a51b28dd34918e57b3d5f20c42c9c3b718d7
1 file changed
+24
-2
plugins.d/cgroup-name.sh
+24
-2
@@ -25,6 +25,24 @@ if [ -f "${CONFIG}" ]
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# echo >&2 "${0}: configuration file '${CONFIG}' is not available."
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fi
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+function get_name_classic {
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+ DOCKERID=$1
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+ echo >&2 "Running command: docker ps --filter=id=\"${DOCKERID}\" --format=\"{{.Names}}\""
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+ NAME="$( docker ps --filter=id="${DOCKERID}" --format="{{.Names}}" )"
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+}
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+
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+function get_name_api {
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+ DOCKERID=$1
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+ if [ ! -S "/var/run/docker.sock" ]
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+ then
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+ echo >&2 "Can't find /var/run/docker.sock"
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+ return
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+ fi
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+ echo >&2 "Running API command: /containers/${DOCKERID}/json"
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+ JSON=$(echo -e "GET /containers/${DOCKERID}/json HTTP/1.0\r\n" | nc -U /var/run/docker.sock | egrep '^{.*')
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+ NAME=$(echo $JSON | jq -r .Name,.Config.Hostname | grep -v null | head -n1 | sed 's|^/||')
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+}
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+
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if [ -z "${NAME}" ]
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then
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if [[ "${CGROUP}" =~ ^.*docker[-/\.][a-fA-F0-9]+[-\.]?.*$ ]]
@@ -33,8 +51,12 @@ if [ -z "${NAME}" ]
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if [ ! -z "${DOCKERID}" -a \( ${#DOCKERID} -eq 64 -o ${#DOCKERID} -eq 12 \) ]
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then
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- echo >&2 "Running command: docker ps --filter=id=\"${DOCKERID}\" --format=\"{{.Names}}\""
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- NAME="$( docker ps --filter=id="${DOCKERID}" --format="{{.Names}}" )"
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+ if hash docker 2>/dev/null
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+ then
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+ get_name_classic $DOCKERID
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+ else
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+ get_name_api $DOCKERID
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+ fi
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if [ -z "${NAME}" ]
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then
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echo >&2 "Cannot find the name of docker container '${DOCKERID}'"