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-rwxr-xr-xplugins.d/cgroup-name.sh69
1 files changed, 59 insertions, 10 deletions
diff --git a/plugins.d/cgroup-name.sh b/plugins.d/cgroup-name.sh
index 1c6f564b4..9bb3bcabb 100755
--- a/plugins.d/cgroup-name.sh
+++ b/plugins.d/cgroup-name.sh
@@ -1,17 +1,66 @@
#!/usr/bin/env bash
+# netdata
+# real-time performance and health monitoring, done right!
+# (C) 2016 Costa Tsaousis <costa@tsaousis.gr>
+# GPL v3+
+#
+# Script to find a better name for cgroups
+#
+
export PATH="${PATH}:/sbin:/usr/sbin:/usr/local/sbin"
export LC_ALL=C
+# -----------------------------------------------------------------------------
+
+PROGRAM_NAME="$(basename "${0}")"
+
+logdate() {
+ date "+%Y-%m-%d %H:%M:%S"
+}
+
+log() {
+ local status="${1}"
+ shift
+
+ echo >&2 "$(logdate): ${PROGRAM_NAME}: ${status}: ${*}"
+
+}
+
+warning() {
+ log WARNING "${@}"
+}
+
+error() {
+ log ERROR "${@}"
+}
+
+info() {
+ log INFO "${@}"
+}
+
+fatal() {
+ log FATAL "${@}"
+ exit 1
+}
+
+debug=0
+debug() {
+ [ $debug -eq 1 ] && log DEBUG "${@}"
+}
+
+# -----------------------------------------------------------------------------
+
NETDATA_CONFIG_DIR="${NETDATA_CONFIG_DIR-/etc/netdata}"
CONFIG="${NETDATA_CONFIG_DIR}/cgroups-names.conf"
CGROUP="${1}"
NAME=
+# -----------------------------------------------------------------------------
+
if [ -z "${CGROUP}" ]
then
- echo >&2 "${0}: called without a cgroup name. Nothing to do."
- exit 1
+ fatal "called without a cgroup name. Nothing to do."
fi
if [ -f "${CONFIG}" ]
@@ -19,15 +68,15 @@ if [ -f "${CONFIG}" ]
NAME="$(grep "^${CGROUP} " "${CONFIG}" | sed "s/[[:space:]]\+/ /g" | cut -d ' ' -f 2)"
if [ -z "${NAME}" ]
then
- echo >&2 "${0}: cannot find cgroup '${CGROUP}' in '${CONFIG}'."
+ info "cannot find cgroup '${CGROUP}' in '${CONFIG}'."
fi
#else
-# echo >&2 "${0}: configuration file '${CONFIG}' is not available."
+# info "configuration file '${CONFIG}' is not available."
fi
function get_name_classic {
local DOCKERID="$1"
- echo >&2 "Running command: docker ps --filter=id=\"${DOCKERID}\" --format=\"{{.Names}}\""
+ info "Running command: docker ps --filter=id=\"${DOCKERID}\" --format=\"{{.Names}}\""
NAME="$( docker ps --filter=id="${DOCKERID}" --format="{{.Names}}" )"
return 0
}
@@ -36,10 +85,10 @@ function get_name_api {
local DOCKERID="$1"
if [ ! -S "/var/run/docker.sock" ]
then
- echo >&2 "Can't find /var/run/docker.sock"
+ warning "Can't find /var/run/docker.sock"
return 1
fi
- echo >&2 "Running API command: /containers/${DOCKERID}/json"
+ info "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 $JSON | jq -r .Name,.Config.Hostname | grep -v null | head -n1 | sed 's|^/||')
return 0
@@ -62,10 +111,10 @@ if [ -z "${NAME}" ]
fi
if [ -z "${NAME}" ]
then
- echo >&2 "Cannot find the name of docker container '${DOCKERID}'"
+ warning "cannot find the name of docker container '${DOCKERID}'"
NAME="${DOCKERID:0:12}"
else
- echo >&2 "Docker container '${DOCKERID}' is named '${NAME}'"
+ info "docker container '${DOCKERID}' is named '${NAME}'"
fi
fi
fi
@@ -74,5 +123,5 @@ if [ -z "${NAME}" ]
[ ${#NAME} -gt 100 ] && NAME="${NAME:0:100}"
fi
-echo >&2 "${0}: cgroup '${CGROUP}' is called '${NAME}'"
+info "cgroup '${CGROUP}' is called '${NAME}'"
echo "${NAME}"