Upkeep for Playground deployment #311
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meysam81
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Sep 21, 2023
| proxied: | ||
| - domain: "{{ vars_playground_domain }}" | ||
| to: "http://localhost:{{ vars_playground_env_ui_port }}" | ||
| to: "http://127.0.0.1:{{ vars_playground_env_ui_port }}" |
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Is this any different, I wonder? 🤔
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| @@ -25,3 +25,8 @@ | |||
| src: after-ssl-renew.sh | |||
| dest: /etc/ssl/letsencrypt/after-renew.d | |||
| mode: 0750 | |||
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| - name: create systemd override file | |||
| template: | |||
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Ansible-lint suggests writing the FQDN name of the task: ansible.builtin.template.
It's probably worth considering enforcing ansible-lint on the CI to have a consistent style everywhere.
| @@ -0,0 +1,2 @@ | |||
| [Service] | |||
| LimitNOFILE={{ (worker_connections * 2) + 32 }} | |||
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Quick question: what's the equation for? This multiplication and addition.
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jdno
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Mar 12, 2024
The playground server only listens on an IPv4 address, not IPv6. Sending requests to `localhost` routes to both the IPv4 **and** IPv6, which results in a percentage of requests seemingly randomly failing.
With the WebSocket functionality, we now have a number of latent connections hanging out.
This allows us to influence the OOM killer's behavior, hopefully killing our processes instead of something more important to the system.
The default driver can be inefficient [1] as it reads / parses / formats / writes a large JSON file over and over. Since all of the playground's communication goes over stdin / stdout, that can be a lot of junk logged! The `local` driver should be more efficient. [1]: docker/for-linux#641
This is expected to happen when the service restarts while a container is running, as we don't have a graceful cleanup in the service. It can also happen unexpectedly during a crash. For some reason, this also happens when the service hasn't restarted (naturally or unexpectedly) and I haven't had a chance to hunt that down yet.
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Rebased now that #393 is merged and I added the last commit (the container GC script) |
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These changes have been running in production for a while after I hand-applied them. The Ansible-specific changes are mostly to see that the managed changes match close enough to the manual changes, but hopefully will be helpful to others.