Whats about
Minimal installation of AlertManager ( default configuration file )
Systemd Unit configration
Keep all secure wit nginx
Prerequisites
Centos minimal + http://agreco.it/en/post/prometheus-installation/
dns or /etc/hosts
alert.yourdomain.TLV IN A ip.youralertmanager.server
Donwload binary files
cd /tmp
wget https://github.com/prometheus/alertmanager/releases/download/v0.5.1/alertmanager-0.5.1.linux-amd64.tar.g
Installation
Extract the file
tar -zxvf alertmanager-0.5.1.linux-amd64.tar.gz
Move all in /opt
#estraiamo il file
tar -zxvf alertmanager-0.5.1.linux-amd64.tar.gz
mkdir /opt/prometheus/alertmanager
mv alertmanager-0.5.1.linux-amd64/* /opt/prometheus/alertmanager
Fix the permmission
chown -R prometheus:prometheus /opt/prometheus/alertmanager
Configure Systemd
Create the unit
vim /etc/systemd/system/alertmanager.service
[Unit]
Description=Prometheus AlertManager
After=network.target
After=prometheus.service
[Service]
WorkingDirectory=/opt/prometheus/alertmanager/
ExecStart=/opt/prometheus/alertmanager/alertmanager \
-config.file=/opt/prometheus/alertmanager/simple.yml \
-storage.path=/opt/prometheus/alertmanager/storage \
-web.external-url=http://alert.greco.cf/alert-manager/
User=prometheus
Restart=always
[Install]
WantedBy=default.target
Reload systemd end start the unit
systemctl daemon-reload
systemctl restart alertmanager.service && systemctl status alertmanager.service
systemctl enable alertmanager.service
Create nginx configuration file
vim /etc/systemd/system/alertmanager.service
server {
listen 80;
server_name alert.greco.cf;
auth_basic "Restricted Access";
auth_basic_user_file /etc/nginx/htpasswd.users;
location / {
proxy_pass http://127.0.0.1:9093/alert-manager/;
proxy_http_version 1.1;
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection 'upgrade';
proxy_set_header Host $host;
proxy_cache_bypass $http_upgrade;
}
}
nginx -t
nginx: the configuration file /etc/nginx/nginx.conf syntax is ok
nginx: configuration file /etc/nginx/nginx.conf test is successful
systemctl restart nginx
Now we can find the service at alert.greco.cf