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matrix-docker-ansible-deploy/roles/matrix-postgres/templates/systemd/matrix-postgres.service.j2
Slavi Pantaleev 1fca917ad1 Replace some -v instances with --mount
`-v` magically creates the source destination as a directory,
if it doesn't exist already. We'd like to avoid this magic
and the potential breakage that it might cause.

We'd rather fail while Docker tries to find things to `--mount`
than have it automatically create directories and fail anyway,
while having contaminated the filesystem.

There's a lot more `-v` instances remaining to be fixed later on.
This is just some start.

Things like `matrix_synapse_container_additional_volumes` and
`matrix_nginx_proxy_container_additional_volumes` were not changed to
use `--mount`, as options for each one are passed differently
(`ro` is `ro`, but `rw` doesn't exist and `slave` is `bind-propagation=slave`).
To avoid breaking people's custom volume mounts, we keep it as it is for now.

A deficiency with `--mount` is that it lacks the `z` option (SELinux
ownership changes), and some of our `-v` instances use that. I'm not
sure how supported SELinux is for us right now, but it might be,
and breaking that would not be a good idea.
2020-11-24 10:26:05 +02:00

39 lines
1.3 KiB
Django/Jinja

#jinja2: lstrip_blocks: "True"
[Unit]
Description=Matrix Postgres server
After=docker.service
Requires=docker.service
[Service]
Type=simple
ExecStartPre=-{{ matrix_host_command_docker }} stop matrix-postgres
ExecStartPre=-{{ matrix_host_command_docker }} rm matrix-postgres
ExecStart={{ matrix_host_command_docker }} run --rm --name matrix-postgres \
--log-driver=none \
--user={{ matrix_user_uid }}:{{ matrix_user_gid }} \
--cap-drop=ALL \
--read-only \
--tmpfs=/tmp:rw,noexec,nosuid,size=100m \
--tmpfs=/run/postgresql:rw,noexec,nosuid,size=100m \
--network={{ matrix_docker_network }} \
{% if matrix_postgres_container_postgres_bind_port %}
-p {{ matrix_postgres_container_postgres_bind_port }}:5432 \
{% endif %}
--env-file={{ matrix_postgres_base_path }}/env-postgres-server \
--mount type=bind,src={{ matrix_postgres_data_path }},dst=/var/lib/postgresql/data \
--mount type=bind,src=/etc/passwd,dst=/etc/passwd,ro \
{% for arg in matrix_postgres_container_extra_arguments %}
{{ arg }} \
{% endfor %}
{{ matrix_postgres_docker_image_to_use }}
ExecStop=-{{ matrix_host_command_docker }} stop matrix-postgres
ExecStop=-{{ matrix_host_command_docker }} rm matrix-postgres
Restart=always
RestartSec=30
SyslogIdentifier=matrix-postgres
[Install]
WantedBy=multi-user.target