Configuration

There are 3 ways to configure Semaphore:

• Snap configuration

• Interactive setup

• Configuration file

Snap configuration

Snap configurations should be used for when Semaphore was installed via Snap.

To see a list of available options, use the following command:

sudo snap get semaphore

You can change each of these configurations. For example if you want to change Semaphore port, use following command:

sudo snap set semaphore port=4444

Don't forget to restart Semaphore after changing a configuration:

sudo snap restart semaphore

Interactive setup

Use this option for first time configuration (not working for Semaphore installed via Snap).

semaphore setup

Configuration file

Semaphore uses a config.json configuration file with following content:

{
  "bolt": {
    "host": "/home/ubuntu/semaphore.bolt",
  },
  "mysql": {
    "host": "localhost",
    "user": "root",
    "pass": "*****",
    "name": "semaphore",
    "options": {}
  },
  "postgres": {
    "host": "localhost",
    "user": "postgres",
    "pass": "*****",
    "name": "semaphore",
    "options": {}
  },
  "dialect": "postgres",
  "port": "",
  "interface": "",
  "tmp_path": "/tmp/semaphore",
  "cookie_hash": "*****",
  "cookie_encryption": "*****",
  "access_key_encryption": "*****",
  "email_sender": "",
  "email_host": "",
  "email_port": "",
  "web_host": "",
  "ldap_binddn": "",
  "ldap_bindpassword": "",
  "ldap_server": "",
  "ldap_searchdn": "",
  "ldap_searchfilter": "",
  "ldap_mappings": {
    "dn": "",
    "mail": "",
    "uid": "",
    "cn": ""
  },
  "telegram_chat": "",
  "telegram_token": "",
  "concurrency_mode": "",
  "max_parallel_tasks": 0,
  "email_alert": false,
  "telegram_alert": false,
  "slack_alert": false,
  "slack_url": "",
  "rocketchat_alert": false,
  "rocketchat_url": "",
  "ldap_enable": false,
  "ldap_needtls": false
}

Configuration options

Configuration file	Snap configuration	Description
bolt.host	—	Path to the BoltDB database file
mysql.host	mysql.host	MySQL database host
mysql.name	mysql.name	MySQL database (schema) name
mysql.user	mysql.user	MySQL user name
mysql.pass	mysql.pass	MySQL user's password
postgres.host	postgres.host	Postgres database host
postgres.name	postgres.name	Postgres database (schema) name
postgres.user	postgres.user	Postgres user name
postgres.pass	postgres.pass	Postgres user's password
dialect	dialect	Can be mysql, postgres or bolt
port	port	TCP port on which the web interface will be available. Default: 3000
interface	interface	Useful if your server has multiple network interfaces
tmp_path	—	Path to directory where cloned repositories and generated files are stored. Default: /tmp/semaphore
access_key_encryption	access-key-encryption	Secret key used for encrypting access keys in database. Read more in Database encryption reference.
web_host	web-host	Can be useful if you want to use Semaphore by the subpath, for example: http://yourdomain.com/semaphore. Do not add a trailing /.
email_sender	email-sender
email_host	email-host
email_port	email-port
email_secure	email-secure
email_username	email-username
email_password	email-password
email_alert	email-alert
telegram_alert	telegram-alert
slack_alert	slack-alert	Set to True to enable pushing alerts to slack. It should be used in combination with slack_url
slack_url	slack-url	The slack webhook url. Semaphore will used it to POST Slack formatted json alerts to the provided url.
rocketchat_alert	rocketchat-alert	Set to True to enable pushing alerts to Rocket.Chat. It should be used in combination with rocketchat_url. Available since v2.9.56.
rocketchat_url	rocketchat-url	The rocketchat webhook url. Semaphore will used it to POST Rocket.Chat formatted json alerts to the provided url. Available since v2.9.56.
ldap_enable	ldap-enable
ldap_needtls	ldap-needtls
ldap_binddn	ldap-binddn
ldap_bindpassword	ldap-bindpassword
ldap_server	ldap-server
ldap_searchdn	ldap-searchdn
concurrency_mode	concurrency-mode	Can be unset/empty or project or node. When set to project, tasks will run in parallel if and only if they do not share the same project id, with no regard to the nodes/hosts that are affected. When set to node, a task will run in parallel if and only if the hosts affected by tasks already running does not intersect with the hosts that would be affected by the task in question. If concurrency_mode is not specified or left empty, no task will start before the previous one has finished.
max_parallel_tasks	max-parallel-tasks	Max allowed parallel tasks if concurrency-mode is enabled. Can also be set/changed within the Web UI (project settings).
oidc_providers		OpenID provider settings. You can provide multiple OpenID providers. More about OpenID configuration read in OpenID.
password_login_disable		Disable login with using password. Only LDAP and OpenID.
non_admin_can_create_project		Allow non-admin users to create new projects.

Public URL

If you use nginx or other web server before Semaphore, you should provide configuration option web_host.

For example you configured NGINX on the server which proxies queries to Semaphore.

Server address https://exmaple.com and you proxies all queries https://exmaple.com/semaphore to Semaphore.

Your web_host will be https://exmaple.com/semaphore.