cdist configuration management Latest manual: https://www.cdi.st/manual/latest/ Home page: https://www.cdi.st
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#!/bin/sh -e
##### HARD-CODED CONFIG #####################################################
CONF_DIR=/etc/prometheus
CONF=$CONF_DIR/alertmanager.yml
##### GET SETTINGS ##########################################################
config="$(cat "$__object/parameter/config")"
retention_days="$(cat "$__object/parameter/retention-days")"
storage_path="$(cat "$__object/parameter/storage-path")"
# listen_address="$(cat "$__object/parameter/listen-address")"
##### INSTALL THE PACKAGE ###################################################
require_pkg="" # what to require if I want to require "the package"
require=""
if [ -f "$__object/parameter/install-from-backports" ]; then
os=$(cat "$__global/explorer/os")
os_version=$(cat "$__global/explorer/os_version")
case $os in
devuan)
[ "$os_version" = "ascii/ceres" ] && os_version='ascii' # "ascii" used in the repo URLs
__apt_source backports --uri http://auto.mirror.devuan.org/merged --distribution $os_version-backports --component main
require="$require __apt_source/backports" __package_apt prometheus-alertmanager --target-release $os_version-backports
require_pkg="__package_apt/prometheus-alertmanager"
;;
*)
echo "--install-from-backports is only supported on Devuan -- ignoring." >&2
echo "Send a pull request if you require it." >&2
exit 1
;;
esac
else
__package prometheus-alertmanager
require_pkg="__package/prometheus-alertmanager"
fi
##### PREPARE PATHS AND SUCH ################################################
require="$require $require_pkg" __directory "$storage_path" --owner prometheus --parents
# TODO this is a bug in the init script, patching it like this is awful and it should be reported
require="$require $require_pkg" \
__key_value alertmanager_fix_init_script --file /etc/init.d/prometheus-alertmanager \
--key "NAME" --value "prometheus-alertmanager" --delimiter "=" \
--onchange "service prometheus-alertmanager restart"
##### CONFIGURE #############################################################
FLAGS="--storage.path $storage_path --data.retention $((retention_days*24))h --web.listen-address [::]:9093 --cluster.advertise-address [::]:9093"
require="$require $require_pkg" \
__key_value alertmanager_args --file /etc/default/prometheus-alertmanager \
--key "ARGS" --value "\"$FLAGS\"" --delimiter "=" \
--onchange "service prometheus-alertmanager restart"
require="$require __directory/$storage_path $require_pkg" \
__config_file $CONF \
--source "$config" \
--group prometheus --mode 640 \
--onchange "service prometheus-alertmanager restart" # TODO when a config-check tool is available, check config here