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| author | St33v <github@f3rr3t.com> | 2026-03-15 14:08:22 +1100 |
|---|---|---|
| committer | St33v <github@f3rr3t.com> | 2026-03-15 14:08:22 +1100 |
| commit | 078d16785d7b027aead68f59d1c1b4dd18cd5267 (patch) | |
| tree | 3b16d931494015c5c4e65e397f8c42f61b4938e2 | |
| parent | 43d235dc0b60da8510a388bfd7f1491c1a73c6d6 (diff) | |
spec for claude to setup pestrel
| -rw-r--r-- | claudeSpec | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/claudeSpec b/claudeSpec new file mode 100644 index 0000000..fdb8303 --- /dev/null +++ b/claudeSpec @@ -0,0 +1,58 @@ +I have a bash script that generates a synoptic weather image. I need you to review, strengthen and extend it, then create all the deployment config files to run it on my VPS. +Machines: + +Local dev machine: cr4y (Arch Linux) +VPS: pestrel.com, user st33v, Arch Linux, SSH port 40022 + +Project layout on cr4y: +synopticChart.sh +func/ + deriveTimeString.sh +Please read both files before doing anything else. Then: + +1) Review and strengthen both synopticChart.sh and func/deriveTimeString.sh. Inline the logic from deriveTimeString.sh directly into synopticChart.sh, simplifying it in the process — it was written as a separate file only for experimentation. Delete func/deriveTimeString.sh and the func/ directory. The git working tree is clean so all changes and deletions are safe. Apply bash best practices throughout (set -euo pipefail, quoting, meaningful exit codes, etc.) but do not change the core logic. Ask before any non-obvious changes. + + +2) Extend synopticChart.sh to add these final steps after a successful image generation: + +Copy the timestamped PNG to /var/lib/synoptic/archive/ +Move/rename it to /srv/www/synopticLatest.png + + + +Web serving: + +nginx serves /srv/www/ as the document root for pestrel.com +Create a static index.html in /srv/www/ whose <body> contains only <img src="/synopticLatest.png" alt="Latest synoptic"> +There is an existing nginx installation on the VPS from a previous project — write a new site config, don't assume anything about the existing config, and warn about any potential conflicts + +Systemd units — create four unit files: + +synoptic.timer — regular schedule, ask me what interval I want before creating this +synoptic.service — oneshot, runs synopticChart.sh as user st33v, OnFailure=synoptic-retry.timer +synoptic-retry.timer — oneshot timer, fires 15 minutes after a failure +synoptic-retry.service — oneshot, runs the same script + +All services must: + +Set SyslogIdentifier, StandardOutput=journal, StandardError=journal +Use ExecStopPost= to log an explicit SUCCESS or FAILURE marker (including $EXIT_STATUS) via logger, visible with journalctl -p err + +setup.sh — run once on pestrel to: + +Create /opt/synoptic/ and /opt/synoptic/func/ with correct ownership for st33v +Create /var/lib/synoptic/archive/ owned by st33v +Create /srv/www/ owned by st33v +Write index.html to /srv/www/ +Install the four systemd unit files to /etc/systemd/system/ +Run systemctl daemon-reload and systemctl enable --now synoptic.timer +Install the nginx site config and reload nginx +Warn about any pre-existing nginx config that might conflict + +deploy.sh — run from cr4y to push updated scripts to pestrel: +bashscp -P 40022 synopticChart.sh st33v@pestrel.com:/opt/synoptic/ +scp -P 40022 func/deriveTimeString.sh st33v@pestrel.com:/opt/synoptic/func/ +After copying, SSH in and restart the synoptic service to test immediately: +bashssh -p 40022 st33v@pestrel.com "sudo systemctl restart synoptic.service" +Report success or failure clearly. +Ask me the desired timer schedule before generating the systemd units, and ask any other clarifying questions before generating files. |