blob: 97e030852e5d76af77d7728b35369e80c267af76 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
|
#!/usr/bin/env bash
#shellcheck disable=SC2001
# netdata
# real-time performance and health monitoring, done right!
# (C) 2016 Costa Tsaousis <costa@tsaousis.gr>
# SPDX-License-Identifier: GPL-3.0-or-later
#
# 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 "${@}"
exit 1
}
function docker_get_name_classic() {
local id="${1}"
info "Running command: docker ps --filter=id=\"${id}\" --format=\"{{.Names}}\""
NAME="$(docker ps --filter=id="${id}" --format="{{.Names}}")"
return 0
}
function docker_get_name_api() {
local id="${1}"
if [ ! -S "${DOCKER_HOST}" ]; then
warning "Can't find ${DOCKER_HOST}"
return 1
fi
info "Running API command: /containers/${id}/json"
JSON=$(echo -e "GET /containers/${id}/json HTTP/1.0\\r\\n" | nc -U "${DOCKER_HOST}" | grep '^{.*')
NAME=$(echo "$JSON" | jq -r .Name,.Config.Hostname | grep -v null | head -n1 | sed 's|^/||')
return 0
}
function k8s_get_name() {
# Take the last part of the delimited path identifier (expecting either _ or / as a delimiter).
local id="${1##*_}"
if [ "${id}" == "${1}" ]; then
id="${1##*/}"
fi
KUBE_TOKEN="$(</var/run/secrets/kubernetes.io/serviceaccount/token)"
NAME="$(
curl -sSk -H "Authorization: Bearer $KUBE_TOKEN" "https://$KUBERNETES_SERVICE_HOST:$KUBERNETES_PORT_443_TCP_PORT/api/v1/pods" |
jq -r '.items[] | "k8s_\(.metadata.namespace)_\(.metadata.name)_\(.metadata.uid)_\(.status.containerStatuses[0].name) \(.status.containerStatuses[0].containerID)"' |
grep "$id" |
cut -d' ' -f1
)"
if [ -z "${NAME}" ]; then
warning "cannot find the name of k8s pod with containerID '${id}'. Setting name to ${id} and disabling it"
NAME="${id}"
NAME_NOT_FOUND=3
else
info "k8s containerID '${id}' has chart name (namespace_podname_poduid_containername) '${NAME}'"
fi
}
function docker_get_name() {
local id="${1}"
if hash docker 2>/dev/null; then
docker_get_name_classic "${id}"
else
docker_get_name_api "${id}" || docker_get_name_classic "${id}"
fi
if [ -z "${NAME}" ]; then
warning "cannot find the name of docker container '${id}'"
NAME_NOT_FOUND=2
NAME="${id:0:12}"
else
info "docker container '${id}' is named '${NAME}'"
fi
}
function docker_validate_id() {
local id="${1}"
if [ -n "${id}" ] && { [ ${#id} -eq 64 ] || [ ${#id} -eq 12 ]; }; then
docker_get_name "${id}"
else
error "a docker id cannot be extracted from docker cgroup '${CGROUP}'."
fi
}
# -----------------------------------------------------------------------------
[ -z "${NETDATA_USER_CONFIG_DIR}" ] && NETDATA_USER_CONFIG_DIR="@configdir_POST@"
[ -z "${NETDATA_STOCK_CONFIG_DIR}" ] && NETDATA_STOCK_CONFIG_DIR="@libconfigdir_POST@"
DOCKER_HOST="${DOCKER_HOST:=/var/run/docker.sock}"
CGROUP="${1}"
NAME_NOT_FOUND=0
NAME=
# -----------------------------------------------------------------------------
if [ -z "${CGROUP}" ]; then
fatal "called without a cgroup name. Nothing to do."
fi
for CONFIG in "${NETDATA_USER_CONFIG_DIR}/cgroups-names.conf" "${NETDATA_STOCK_CONFIG_DIR}/cgroups-names.conf"; do
if [ -f "${CONFIG}" ]; then
NAME="$(grep "^${CGROUP} " "${CONFIG}" | sed 's/[[:space:]]\+/ /g' | cut -d ' ' -f 2)"
if [ -z "${NAME}" ]; then
info "cannot find cgroup '${CGROUP}' in '${CONFIG}'."
else
break
fi
#else
# info "configuration file '${CONFIG}' is not available."
fi
done
if [ -z "${NAME}" ] && [ -n "${KUBERNETES_SERVICE_HOST}" ] && [ -n "${KUBERNETES_PORT_443_TCP_PORT}" ] && [[ ${CGROUP} =~ ^.*kubepods.* ]]; then
k8s_get_name "${CGROUP}"
fi
if [ -z "${NAME}" ]; then
if [[ ${CGROUP} =~ ^.*docker[-_/\.][a-fA-F0-9]+[-_\.]?.*$ ]]; then
# docker containers
#shellcheck disable=SC1117
DOCKERID="$(echo "${CGROUP}" | sed "s|^.*docker[-_/]\([a-fA-F0-9]\+\)[-_\.]\?.*$|\1|")"
docker_validate_id "${DOCKERID}"
elif [[ ${CGROUP} =~ ^.*ecs[-_/\.][a-fA-F0-9]+[-_\.]?.*$ ]]; then
# ECS
#shellcheck disable=SC1117
DOCKERID="$(echo "${CGROUP}" | sed "s|^.*ecs[-_/].*[-_/]\([a-fA-F0-9]\+\)[-_\.]\?.*$|\1|")"
docker_validate_id "${DOCKERID}"
elif [[ ${CGROUP} =~ machine.slice[_/].*\.service ]]; then
# systemd-nspawn
NAME="$(echo "${CGROUP}" | sed 's/.*machine.slice[_\/]\(.*\)\.service/\1/g')"
elif [[ ${CGROUP} =~ machine.slice_machine.*-qemu ]]; then
# libvirtd / qemu virtual machines
# NAME="$(echo ${CGROUP} | sed 's/machine.slice_machine.*-qemu//; s/\/x2d//; s/\/x2d/\-/g; s/\.scope//g')"
NAME="qemu_$(echo "${CGROUP}" | sed 's/machine.slice_machine.*-qemu//; s/\/x2d[[:digit:]]*//; s/\/x2d//g; s/\.scope//g')"
elif [[ ${CGROUP} =~ machine_.*\.libvirt-qemu ]]; then
# libvirtd / qemu virtual machines
NAME="qemu_$(echo "${CGROUP}" | sed 's/^machine_//; s/\.libvirt-qemu$//; s/-/_/;')"
elif [[ ${CGROUP} =~ qemu.slice_([0-9]+).scope && -d /etc/pve ]]; then
# Proxmox VMs
FILENAME="/etc/pve/qemu-server/${BASH_REMATCH[1]}.conf"
if [[ -f $FILENAME && -r $FILENAME ]]; then
NAME="qemu_$(grep -e '^name: ' "/etc/pve/qemu-server/${BASH_REMATCH[1]}.conf" | head -1 | sed -rn 's|\s*name\s*:\s*(.*)?$|\1|p')"
else
error "proxmox config file missing ${FILENAME} or netdata does not have read access. Please ensure netdata is a member of www-data group."
fi
elif [[ ${CGROUP} =~ lxc_([0-9]+) && -d /etc/pve ]]; then
# Proxmox Containers (LXC)
FILENAME="/etc/pve/lxc/${BASH_REMATCH[1]}.conf"
if [[ -f ${FILENAME} && -r ${FILENAME} ]]; then
NAME=$(grep -e '^hostname: ' "/etc/pve/lxc/${BASH_REMATCH[1]}.conf" | head -1 | sed -rn 's|\s*hostname\s*:\s*(.*)?$|\1|p')
else
error "proxmox config file missing ${FILENAME} or netdata does not have read access. Please ensure netdata is a member of www-data group."
fi
fi
[ -z "${NAME}" ] && NAME="${CGROUP}"
[ ${#NAME} -gt 100 ] && NAME="${NAME:0:100}"
fi
info "cgroup '${CGROUP}' is called '${NAME}'"
echo "${NAME}"
exit ${NAME_NOT_FOUND}
|
