Use alpine baseimage, optimise build

[thespad]

The node:16 baseimage you are using is over 900Mb, using the Alpine 3.15 image as a base and installing only the required node packages reduces the image size by 92%.

[revenz]

just tried this, it does indeed reduce the size to about 30mb from nearly 350mb, nice.

however I currently get this error and the docker wont start

No log line matching the '' filter

[thespad]

Hmm, it's working when I build locally. Are you using Portainer? If there are no logs to display it'll just dump an error like that and from what I can see you don't get any log output until you actually visit the site, even with your existing image:

$ docker run -d --rm --name=fenrus --tmpfs /app/data --tmpfs /app/wwwroot/images -p 8123:3000 revenz/fenrus && docker logs -f fenrus
aab1651d2cc24b65d8a873f616d48e2ace7d040d88c6edba00ed35c823d28f1d

$ docker run -d --rm --name=fenrus --tmpfs /app/data --tmpfs /app/wwwroot/images -p 8123:3000 local/fenrus:latest && docker logs -f fenrus
73a65228b85caf4876efd2ce87b4fab9e7dd44a7ae88c8a0f52b370af046f2db

Loading the site then logs

############## req.url /
GET / 302 8.067 ms - 76
############## req.url /login?error=401
GET /login?error=401 200 9.133 ms - 4088

[revenz]

yes that was from portainer. running manually with the windows docker client I get this error with it

Error invoking remote method 'docker-start-container': Error: (HTTP code 400) unexpected - OCI runtime create failed: container_linux.go:380: starting container process caused: exec: "docker-entrypoint.sh": executable file not found in $PATH: unknown

The built image can be found here
https://hub.docker.com/layers/revenz/nodeportal/latest/images/sha256-0f678841881cac65407866cf54b11d350a64d9f1935c9089a387c235f78dc9c6?context=repo

[thespad]

Unfortunately I haven't got a Windows host to be able to test with and I can't replicate the issue on any of my Linux hosts. Can you try my built image docker.io/thespad/testbed:fenrus and see if it does the same thing.

[revenz]

i'm going to merge this and then do a full build on TeamCity, if it doesn't work, ill just revert it.

[revenz]

seems fine. think portainer was doing something odd when it was re-creating the image. deleting my old ones and fetching fresh ones worked.
thanks!