Add Linux fresh setup toolkit

2026-06-06 00:23:11 +00:00
parent 8cb92de06f
commit 4e739c5c99
25 changed files with 1646 additions and 0 deletions
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+# Docker
+
+## Package policy
+
+The profile prefers Ubuntu's `docker.io` package. If that package is
+unavailable after an APT refresh, it configures Docker's official Ubuntu
+repository and installs Docker Engine, containerd, Buildx, and Compose plugins.
+
+This fallback requires network access to `download.docker.com`.
+
+## Daemon configuration
+
+The managed settings are:
+
+```json
+{
+  "log-driver": "json-file",
+  "log-opts": {
+    "max-size": "50m",
+    "max-file": "5"
+  }
+}
+```
+
+Existing valid `/etc/docker/daemon.json` content is preserved and merged with
+these log settings. A changed file is backed up with a timestamp. Invalid JSON
+causes the profile to stop rather than overwrite operator configuration.
+
+Log limits apply to newly created containers. Existing containers may retain
+their original logging configuration until recreated.
+
+## Validation
+
+```bash
+docker version
+docker compose version
+docker info
+docker ps
+docker system df
+jq . /etc/docker/daemon.json
+```
+
+## Troubleshooting and rollback
+
+```bash
+systemctl status docker
+journalctl -u docker
+jq empty /etc/docker/daemon.json
+```
+
+To restore a previous daemon configuration, review a timestamped backup,
+replace the current file, validate it with `jq empty`, and restart Docker.
+Do not restore blindly when workloads depend on newer daemon settings.
+
+The profile does not configure Docker data roots, prune objects, deploy
+applications, or install the NVIDIA Container Toolkit.