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Merge pull request #1975 from AlistairB/haskell-example-dockerfiles 

Update haskell to make the example dockerfiles more stable
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Tianon Gravi 2021-06-07 13:11:47 -07:00 committed by GitHub
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@ -23,24 +23,24 @@ Additionally, we support the two most versions of Debian (`stable` and `oldstabl
Start an interactive interpreter session with `ghci`:
```console
$ docker run -it --rm %%IMAGE%%:8
GHCi, version 8.4.3: http://www.haskell.org/ghc/ :? for help
$ docker run -it --rm %%IMAGE%%:9
GHCi, version 9.0.1: http://www.haskell.org/ghc/ :? for help
Prelude>
```
Dockerize an application using `stack`:
```dockerfile
FROM %%IMAGE%%:8
RUN stack install pandoc pandoc-citeproc
FROM %%IMAGE%%:8.10
RUN stack install --resolver lts-17.14 pandoc citeproc
ENTRYPOINT ["pandoc"]
```
Dockerize an application using `cabal`:
```dockerfile
FROM %%IMAGE%%:8
RUN cabal update && cabal install pandoc pandoc-citeproc
FROM %%IMAGE%%:8.10
RUN cabal update && cabal install pandoc citeproc
ENTRYPOINT ["pandoc"]
```
@ -59,7 +59,7 @@ COPY ./example.cabal /opt/example/example.cabal
# Docker will cache this command as a layer, freeing us up to
# modify source code without re-installing dependencies
# (unless the .cabal file changes!)
RUN cabal install --only-dependencies -j4
RUN cabal build --only-dependencies -j4
# Add and Install Application Code
COPY . /opt/example