CS.go: Dockerize

[oncilla]

This change is 

[worxli]

Reviewed 3 of 4 files at r1.
Reviewable status: 3 of 4 files reviewed, 1 unresolved discussion (waiting on @oncilla and @worxli)

---

docker/perapp/app/Dockerfile.cert, line 4 at r1 (raw file):

COPY --from=scion_app_builder:latest /home/scion/go/src/github.com/scionproto/scion/bin/cert_srv /app/

ENTRYPOINT ["/sbin/su-exec", "/app/cert_srv", "-config", "/share/conf/csconfig.toml"]

Waiting for #1938

[oncilla]

Reviewable status: 1 of 4 files reviewed, 1 unresolved discussion (waiting on @worxli)

---

docker/perapp/app/Dockerfile.cert, line 4 at r1 (raw file):

Previously, worxli (Lukas Bischofberger) wrote…

Waiting for #1938

Done.

[worxli]

Reviewed 1 of 4 files at r1, 2 of 3 files at r2.
Reviewable status: complete! all files reviewed, all discussions resolved

[worxli]

Reviewed 1 of 1 files at r3.
Reviewable status: complete! all files reviewed, all discussions resolved

[worxli]

Reviewed 2 of 2 files at r4.
Reviewable status: complete! all files reviewed, all discussions resolved