matrix-docker-ansible-deploy/docs/configuring-playbook-prometheus-postgres.md
Suguru Hirahara 20c2aade3e
Edit descriptions about installation of components (#3842)
* Replace installation command shortcut for the "just" program with the most conservative raw ansible-playbook command

This commit replaces installation command shortcut ("recipe") for the "just" program with the raw ansible-playbook command, so that the shortcut will be added to it later. The command is so conservative that failure of the command will mean something is clearly broken.

Signed-off-by: Suguru Hirahara <acioustick@noreply.codeberg.org>

* Add comments about using setup-all instead of install-all

Signed-off-by: Suguru Hirahara <acioustick@noreply.codeberg.org>

* Add description about shortcut command with the "just" program to the ansible-playbook command with "setup-all" and "start" tags

It also explains difference between "just install-all" and "just setup-all" recipes. The explanation is based on docs/playbook-tags.md

Signed-off-by: Suguru Hirahara <acioustick@noreply.codeberg.org>

* Update raw ansible-playbook command to have it do what "just install-all" or "just setup-all" does

Since "just install-all" or "just setup-all" invokes "ensure-matrix-users-created" as well, it needs adding to the raw ansible-playbook command.

Signed-off-by: Suguru Hirahara <acioustick@noreply.codeberg.org>

* Remove "ensure-matrix-users-created" from the raw ansible-playbook command which does not need it

Also: update the "just" recipes accordingly. "just install-all" and "just setup-all" run "ensure-matrix-users-created" tag as well, therefore they need to be replaced with "run-tags" recipes to skip "ensure-matrix-users-created"

Signed-off-by: Suguru Hirahara <acioustick@noreply.codeberg.org>

* Update docs/configuring-playbook-etherpad.md: add ensure-matrix-users-created to the raw ansible-playbook

Signed-off-by: Suguru Hirahara <acioustick@noreply.codeberg.org>

* Add description about "ensure-matrix-users-created" and create a list with description about shortcut commands with "just"

This commit also fixes list item capitalization and punctuation.

Signed-off-by: Suguru Hirahara <acioustick@noreply.codeberg.org>

* Add notes bullet lists

Signed-off-by: Suguru Hirahara <acioustick@noreply.codeberg.org>

* Update docs/configuring-playbook-matrix-corporal.md and docs/configuring-playbook-email2matrix.md: adopt common instructions

Signed-off-by: Suguru Hirahara <acioustick@noreply.codeberg.org>

* Replace "run the installation command" with "run the playbook with tags"

Now that shortcut commands for the "just" program are displayed along with the existing "installation command", this commit replaces "run the installation command" with "run the playbook with tags" in order to prevent misunderstanding and confusion.

Signed-off-by: Suguru Hirahara <acioustick@noreply.codeberg.org>

* Add notes about changing passwords of users specified on vars.yml

Signed-off-by: Suguru Hirahara <acioustick@noreply.codeberg.org>

* Update docs/configuring-playbook-synapse-admin.md: add the playbook command and just recipes

Signed-off-by: Suguru Hirahara <acioustick@noreply.codeberg.org>

* Remove redundant blank lines

Signed-off-by: Suguru Hirahara <acioustick@noreply.codeberg.org>

* Update docs/configuring-playbook-alertmanager-receiver.md: remove the direction to proceed to Usage

Such a kind of direction is not used on other documentation, so it should be fine to just remove it.

Signed-off-by: Suguru Hirahara <acioustick@noreply.codeberg.org>

* Update docs/importing-synapse-media-store.md: code block for ansible-playbook

Signed-off-by: Suguru Hirahara <acioustick@noreply.codeberg.org>

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Signed-off-by: Suguru Hirahara <acioustick@noreply.codeberg.org>
Co-authored-by: Suguru Hirahara <acioustick@noreply.codeberg.org>
2024-12-01 09:42:30 +02:00

2.6 KiB

Enabling metrics and graphs for Postgres (optional)

Expanding on the metrics exposed by the synapse exporter and the node exporter, the playbook enables the postgres exporter that exposes more detailed information about what's happening on your postgres database.

Adjusting the playbook configuration

To enable the postgres exporter, add the following configuration to your inventory/host_vars/matrix.example.com/vars.yml file:

prometheus_postgres_exporter_enabled: true

Installing

After configuring the playbook, run it with playbook tags as below:

ansible-playbook -i inventory/hosts setup.yml --tags=setup-all,start

The shortcut commands with just program are also available: just run-tags install-all,start or just run-tags setup-all,start

just run-tags install-all,start is useful for maintaining your setup quickly when its components remain unchanged. If you adjust your vars.yml to remove other components, you'd need to run just run-tags setup-all,start, or these components will still remain installed. For more information about just shortcuts, take a look at this page: Running just commands

What does it do?

Name Description
prometheus_postgres_exporter_enabled Enable the postgres prometheus exporter. This sets up the docker container, connects it to the database and adds a 'job' to the prometheus config which tells prometheus about this new exporter. The default is 'false'
prometheus_postgres_exporter_database_username The 'username' for the user that the exporter uses to connect to the database. The default is 'matrix_prometheus_postgres_exporter'
prometheus_postgres_exporter_database_password The 'password' for the user that the exporter uses to connect to the database. By default, this is auto-generated by the playbook
prometheus_postgres_exporter_container_labels_traefik_enabled If set to true, exposes the Postgres exporter metrics on https://matrix.example.com/metrics/postgres-exporter for usage with an external Prometheus server. To password-protect the metrics, see matrix_metrics_exposure_http_basic_auth_users on that other documentation page.

More information