From 0e72e3d79e4f4c19c7f8c23ab6a8ccc07a3db9c7 Mon Sep 17 00:00:00 2001
From: Andy Grunwald <andygrunwald@gmail.com>
Date: Sun, 5 Jan 2025 21:38:17 +0100
Subject: [PATCH] New Script: Prometheus Alertmanager

---
 ct/prometheus-alertmanager.sh              | 68 ++++++++++++++++++++++
 install/prometheus-alertmanager-install.sh | 62 ++++++++++++++++++++
 json/prometheus-alertmanager.json          | 34 +++++++++++
 3 files changed, 164 insertions(+)
 create mode 100644 ct/prometheus-alertmanager.sh
 create mode 100644 install/prometheus-alertmanager-install.sh
 create mode 100644 json/prometheus-alertmanager.json

diff --git a/ct/prometheus-alertmanager.sh b/ct/prometheus-alertmanager.sh
new file mode 100644
index 00000000..5ac9f7a5
--- /dev/null
+++ b/ct/prometheus-alertmanager.sh
@@ -0,0 +1,68 @@
+#!/usr/bin/env bash
+source <(curl -s https://raw.githubusercontent.com/community-scripts/ProxmoxVE/main/misc/build.func)
+# Copyright (c) 2021-2025 tteck
+# Author: Andy Grunwald (andygrunwald)
+# License: MIT | https://github.com/community-scripts/ProxmoxVE/raw/main/LICENSE
+# Source: https://prometheus.io/
+
+# App Default Values
+APP="Prometheus-Alertmanager"
+var_tags="monitoring,alerting"
+var_cpu="1"
+var_ram="1024"
+var_disk="2"
+var_os="debian"
+var_version="12"
+var_unprivileged="1"
+
+# App Output & Base Settings
+header_info "$APP"
+base_settings
+
+# Core
+variables
+color
+catch_errors
+
+function update_script() {
+  header_info
+  check_container_storage
+  check_container_resources
+  if [[ ! -f /etc/systemd/system/prometheus-alertmanager.service ]]; then
+    msg_error "No ${APP} Installation Found!"
+    exit
+  fi
+  RELEASE=$(curl -s https://api.github.com/repos/prometheus/alertmanager/releases/latest | grep "tag_name" | awk '{print substr($2, 3, length($2)-4) }')
+  if [[ ! -f /opt/${APP}_version.txt ]] || [[ "${RELEASE}" != "$(cat /opt/${APP}_version.txt)" ]]; then
+    msg_info "Stopping ${APP}"
+    systemctl stop prometheus-alertmanager
+    msg_ok "Stopped ${APP}"
+
+    msg_info "Updating ${APP} to ${RELEASE}"
+    wget -q https://github.com/prometheus/alertmanager/releases/download/v${RELEASE}/alertmanager-${RELEASE}.linux-amd64.tar.gz
+    tar -xf alertmanager-${RELEASE}.linux-amd64.tar.gz
+    cd alertmanager-${RELEASE}.linux-amd64
+    cp -rf alertmanager amtool /usr/local/bin/
+    cd ~
+    rm -rf alertmanager-${RELEASE}.linux-amd64 alertmanager-${RELEASE}.linux-amd64.tar.gz
+    echo "${RELEASE}" >/opt/${APP}_version.txt
+    msg_ok "Updated ${APP} to ${RELEASE}"
+
+    msg_info "Starting ${APP}"
+    systemctl start prometheus-alertmanager
+    msg_ok "Started ${APP}"
+    msg_ok "Updated Successfully"
+  else
+    msg_ok "No update required. ${APP} is already at ${RELEASE}"
+  fi
+  exit
+}
+
+start
+build_container
+description
+
+msg_ok "Completed Successfully!\n"
+echo -e "${CREATING}${GN}${APP} setup has been successfully initialized!${CL}"
+echo -e "${INFO}${YW} Access it using the following URL:${CL}"
+echo -e "${TAB}${GATEWAY}${BGN}http://${IP}:9093${CL}"
\ No newline at end of file
diff --git a/install/prometheus-alertmanager-install.sh b/install/prometheus-alertmanager-install.sh
new file mode 100644
index 00000000..e6b5c700
--- /dev/null
+++ b/install/prometheus-alertmanager-install.sh
@@ -0,0 +1,62 @@
+#!/usr/bin/env bash
+
+# Copyright (c) 2021-2025 tteck
+# Author: Andy Grunwald (andygrunwald)
+# License: MIT
+# https://github.com/community-scripts/ProxmoxVE/raw/main/LICENSE
+
+source /dev/stdin <<< "$FUNCTIONS_FILE_PATH"
+color
+verb_ip6
+catch_errors
+setting_up_container
+network_check
+update_os
+
+msg_info "Installing Dependencies"
+$STD apt-get install -y curl
+$STD apt-get install -y sudo
+msg_ok "Installed Dependencies"
+
+msg_info "Installing Prometheus Alertmanager"
+RELEASE=$(curl -s https://api.github.com/repos/prometheus/alertmanager/releases/latest | grep "tag_name" | awk '{print substr($2, 3, length($2)-4) }')
+mkdir -p /etc/alertmanager
+mkdir -p /var/lib/alertmanager
+wget -q https://github.com/prometheus/alertmanager/releases/download/v${RELEASE}/alertmanager-${RELEASE}.linux-amd64.tar.gz
+tar -xf alertmanager-${RELEASE}.linux-amd64.tar.gz
+cd alertmanager-${RELEASE}.linux-amd64
+mv alertmanager amtool /usr/local/bin/
+mv alertmanager.yml /etc/alertmanager/alertmanager.yml
+echo "${RELEASE}" >/opt/${APPLICATION}_version.txt
+msg_ok "Installed Prometheus Alertmanager"
+
+msg_info "Creating Service"
+service_path="/etc/systemd/system/prometheus-alertmanager.service"
+echo "[Unit]
+Description=Prometheus Alertmanager
+Wants=network-online.target
+After=network-online.target
+
+[Service]
+User=root
+Restart=always
+Type=simple
+ExecStart=/usr/local/bin/alertmanager \
+    --config.file=/etc/alertmanager/alertmanager.yml \
+    --storage.path=/var/lib/alertmanager/ \
+    --web.listen-address=0.0.0.0:9093
+ExecReload=/bin/kill -HUP \$MAINPID
+
+[Install]
+WantedBy=multi-user.target" >$service_path
+systemctl enable -q --now prometheus-alertmanager
+msg_ok "Created Service"
+
+motd_ssh
+customize
+
+msg_info "Cleaning up"
+$STD apt-get -y autoremove
+$STD apt-get -y autoclean
+rm -rf ../alertmanager-${RELEASE}.linux-amd64 ../alertmanager-${RELEASE}.linux-amd64.tar.gz
+msg_ok "Cleaned"
diff --git a/json/prometheus-alertmanager.json b/json/prometheus-alertmanager.json
new file mode 100644
index 00000000..e132741f
--- /dev/null
+++ b/json/prometheus-alertmanager.json
@@ -0,0 +1,34 @@
+{
+    "name": "Prometheus Alertmanager",
+    "slug": "prometheus-alertmanager",
+    "categories": [
+        7
+    ],
+    "date_created": "2025-01-05",
+    "type": "ct",
+    "updateable": true,
+    "privileged": false,
+    "interface_port": 9093,
+    "documentation": "https://prometheus.io/docs/alerting/latest/overview/",
+    "website": "https://prometheus.io/",
+    "logo": "https://raw.githubusercontent.com/loganmarchione/homelab-svg-assets/main/assets/prometheus.svg",
+    "description": "Alerting with Prometheus is separated into two parts. Alerting rules in Prometheus servers send alerts to an Alertmanager. The Alertmanager then manages those alerts, including silencing, inhibition, aggregation and sending out notifications via methods such as email, on-call notification systems, and chat platforms.",
+    "install_methods": [
+        {
+            "type": "default",
+            "script": "ct/prometheus-alertmanager.sh",
+            "resources": {
+                "cpu": 1,
+                "ram": 1024,
+                "hdd": 2,
+                "os": "debian",
+                "version": "12"
+            }
+        }
+    ],
+    "default_credentials": {
+        "username": null,
+        "password": null
+    },
+    "notes": []
+}
\ No newline at end of file