nebula

Where stars are born.

Manages the local infrastructure of my home server. I'm also doing blog posts around the same:

1. Part 1, Hardware
2. Part 2, Terraform/Docker
3. Part 3, Learnings
4. Part 4, Migrating from Google (and more)
5. Part 5, Networking
6. Part 6, RAID

The canonical URL for this repo is https://git.captnemo.in/nemo/nebula/. A mirror is maintained on GitHub at https://github.com/captn3m0/nebula

modules

1. docker: to actually run the services. Catch-all for miscellaneous containers
2. cloudflare: to manage the DNS.
3. mysql: to create mysql users and databases.
4. media: Media related containers (Jackett, Lidarr, Radarr, Sonarr)
5. Monitoring: Monitoring related resources (Cadvisor, Grafana, NodeExporter, Prometheus, Transmission-Exporter)
6. Gitea: Just git.captnemo.in
7. miniflux: RSS Web reader
8. Radicale: CardDav/CalDav webserver

Self-learning project for terraform/docker.

Planned

1. ~Setup DigitalOcean~
2. Add DO infrastructure via ansible
3. ~Add traefik for proper proxying~
4. Maybe add docker swarm (or k8s?) across both the servers. Might setup the k8s API on the Raspberry Pi.

Service List

Currently running the following (all links are to the store.docker.com links for the docker images that I'm using:

image	tag	module/link
captn3m0/opml-gen	latest	https://opml.bb8.fun
captn3m0/prometheus-act-exporter	latest	https://git.captnemo.in/nemo/prometheus-act-exporter
captn3m0/rss-bridge	latest	https://github.com/RSS-Bridge/rss-bridge
captn3m0/speedtest-exporter	alpine	https://github.com/stefanwalther/speedtest-exporter
emby/embyserver	latest	https://emby.media
gitea/gitea	1.5.0-rc1	services
google/cadvisor	latest	monitoring
grafana/grafana	latest	monitoring
jankysolutions/requestbin	latest	tools
linuxserver/airsonic	latest	media
linuxserver/jackett	latest	media
linuxserver/lidarr	latest	media
linuxserver/lychee	latest	media
linuxserver/radarr	latest	media
linuxserver/sonarr	latest	media
linuxserver/transmission	latest	media
linuxserver/ubooquity	latest	media
miniflux/miniflux	2.0.9	tools
postgres	10-alpine	database
prom/node-exporter	v0.15.2	monitoring
prom/prometheus	latest	monitoring
requarks/wiki	latest	services
serjs/go-socks5-proxy	latest	tools
tocttou/gotviz	latest	na
tomsquest/docker-radicale	latest	services
traefik	1.6-alpine	plumbing

Docker Notes

• Lots of the above images are from the excellent LinuxServer.io, and they're doing great work 👍
• Most images are running the latest beta (if available) or stable versions.
• Traefik is running with wildcard certificates.

Upstream

I've been using this as a contributing opportunity and reporting/fixing issues upstream:

1. Airsonic HTTPS proxying is broken. Reported: https://github.com/airsonic/airsonic/issues/641. Turned out to be a known issue: https://github.com/airsonic/airsonic/issues/594. Now fixed.
2. Traefik docker backend security headers were broken with dashes. I reported it here, and fixed by https://github.com/containous/traefik/pull/2496 ✅
3. Headphones dies repeatedly with no error logs. Yet-to-report. (Already reported, fails due to classical artists)
4. Terraform doesn't parse mariadb version numbers. Report: https://github.com/terraform-providers/terraform-provider-mysql/issues/6. Filed a PR to fix and to bump the go-version dependency ✅
5. elibsrv didn't support ebook-convert, only mobigen. PR is at https://github.com/captn3m0/elibsrv/pull/1. Merged to elibsrv trunk, will be part of next release.
6. ubooquity docker container doesn't let you set admin password: https://github.com/linuxserver/docker-ubooquity/issues/17. (Couldn't reproduce, closed) ✅
7. Traefik customresponseheaders can't contain colons on the docker backend: https://github.com/containous/traefik/issues/2517. Fixed with https://github.com/containous/traefik/pull/2509 ✅
8. Traefik Security headers don't overwrite upstream headers: https://github.com/containous/traefik/issues/2618 ✅
9. Transmission exporter broke with different data types while unmarshalling JSON in go. I filed a PR https://github.com/metalmatze/transmission-exporter/pull/2 ✅
10. Radarr official docker container was running a very old mediainfo. Filed a fix to upgrade mediainfo on the official radarr image ✅
11. Patched the speedtest-exporter to use Alpine and upgraded Node.JS for a smaller updated build.
12. Faced (4) above again because mariadb decided to add : in the version response. Workaround was to force set --version=10.3-mariadb
13. Reported 2 critical security issues in Abstruse CI. ✅
14. Faced (13) above again with postgres, thankfully someone already fixed version parsing ✅
15. RSS Bridge was missing an official Docker Image. I Filed a PR ✅

Plumbing

Their is a lot of additional infrastructure that is not-yet part of this repo. This includes:

1. The Digital Ocean droplet running DNSCrypt and simpleproxy to proxy over a openvpn connection to this box.
2. openbox, kodi configuration to run on boot along with the Steam Controller for the HTPC setup
3. Docker main configuration with half-baked CA setup
4. btrfs-backed subvolumes and snapshotting for most things in /mnt/xwing/ (in-progress)
5. User-creation on the main server. (I'm using a common user for media applications and specific users for other applications)

License

All code in this repository is shared under the MIT License.