123 lines
3.8 KiB
Markdown
123 lines
3.8 KiB
Markdown
# Deployer: deploy your shit and make it run
|
|
|
|
So lame to have to configure nginx, MySQL, and your filesystem to install a stupid Wordpress instance.
|
|
|
|
**Deployer** does my config for me like the slave it is.
|
|
|
|
All the configuration is defined in `group_vars/all/vars.yml`, go check.
|
|
|
|
Create a side `group_vars/all/vault.yml` for your secrets, and encrypt it with Ansible Vault:
|
|
|
|
```bash
|
|
ansible-vault encrypt group_vars/all/vault.yml
|
|
# other sub-commands: edit, decrypt...
|
|
```
|
|
|
|
I usually run the following command:
|
|
|
|
ansible-playbook --ask-vault-pass sites.yml -i inventory -v
|
|
|
|
## Required packages on remote
|
|
|
|
Python modules:
|
|
|
|
* docker
|
|
* docker-compose
|
|
* pymysql
|
|
* psycopg2
|
|
|
|
TODO: Ansible task to install that before the rest
|
|
|
|
## Features
|
|
|
|
* Creating Wordpress instances (yoohoo, da best)
|
|
|
|
* That send mail!!11!1!
|
|
* Supports existing and new installs
|
|
|
|
* Creating Drupal instances
|
|
|
|
* Only existing ones (no new installs)
|
|
|
|
* Create Gitea instances
|
|
|
|
* Nginx and docker-compose configurations
|
|
* Most of the work is by hand, because there is quite a lot of interaction between the host and the container (for forwarding ssh).
|
|
|
|
* Create Synapse instances
|
|
|
|
* Configured to access PostGreSQL on host.
|
|
|
|
* *Access through TCP*: You need to allow postgres to listen to your docker network, e.g. `172.27.0.0/16`. See `/etc/postgresql/x.y/main/pg_hba.conf`, and read the comments about changing `listen_addresses` too.
|
|
* Access through Unix socket: Make a non-superuser role for root, and configure Synapse to use `/var/run/postgresql` as DB host.
|
|
|
|
### Does not support
|
|
|
|
* Setting up the host
|
|
|
|
* SSL certificate creation (bro, do it yourself!). That is:
|
|
|
|
```bash
|
|
# Make an nginx file for certbot
|
|
cat << EOF > /etc/nginx/sites-enabled/yoursite.com
|
|
server {
|
|
listen 80;
|
|
server_name www.yoursite.com yoursite.com;
|
|
include snippets/letsencrypt.conf;
|
|
}
|
|
EOF
|
|
nginx -t # Is everything alright?
|
|
# If so, restart nginx
|
|
service nginx restart
|
|
# Create the certificate
|
|
certbot certonly --webroot -w /var/www/letsencrypt -d yoursite.com -d www.yoursite.com
|
|
# Remove the stupid file
|
|
rm /etc/nginx/sites-enabled/yoursite.com
|
|
service nginx restart
|
|
```
|
|
|
|
## Misc
|
|
|
|
### Creating and rotating backups using `logrotate`
|
|
|
|
This is quite cool because `logrotate` manages rotation/deletion of 'log' files very well, so why not use it to rotate backup archives?
|
|
|
|
One can also add `prerotate`/`postrotate` scripts to a `logrotate` block, which allows to create the backups using `logrotate` too! (This way, there is only one utility taking care of the full backup creation/rotation/deletion process.)
|
|
|
|
A problem is that **`logrotate` blocks won't run if the block's file does not exist**. So, if you create a block like so:
|
|
|
|
/path/to/backup/dir/db-backup.sql.gz {
|
|
prerotate
|
|
# create the backup file
|
|
endscript
|
|
weekly
|
|
missingok
|
|
nocompress
|
|
nocreate
|
|
}
|
|
|
|
This block will never run unless `/path/to/backup/dir/db-backup.sql.gz` exists. This is why `roles/build/tasks/backup.yml` creates an empty backup file while defining the logrotate entry.
|
|
|
|
### Synapse
|
|
|
|
Someone advised me to install matrix-media-repo to enable animated thumbnails as people's avatar (https://github.com/turt2live/matrix-media-repo/blob/master/config.sample.yaml#L394), and to setup https://github.com/ma1uta/ma1sd which is a federated identity server.
|
|
|
|
|
|
|
|
### Ansible
|
|
|
|
* You can create passwords/keys in templates using the following Jinja2 command:
|
|
|
|
{{ lookup('password', '/dev/null length=20') }}
|
|
|
|
See https://docs.ansible.com/ansible/latest/plugins/lookup/password.html and https://docs.ansible.com/ansible/latest/user_guide/playbooks_lookups.html
|
|
|
|
|
|
### Useful MySQL commands
|
|
|
|
```sql
|
|
select host, user, password from mysql.user order by user;
|
|
create user 'arvuhez'@'172.26.0.2' identified by 'kjhs';
|
|
grant all on arvuhez.* to 'arvuhez'@'172.26.0.2';
|
|
show grants for 'arvuhez'@'172.26.0.2';
|
|
```
|