Update Dockerfile and docker docs (pkgxdev#805)

Closes pkgxdev#804

.github/Dockerfile

@@ -5,7 +5,9 @@ RUN echo 'export PS1="\\[\\033[38;5;63m\\]pkgx\\[\\033[0m\\] $ "' >> /root/.bash
 RUN pkgx integrate
 
 FROM debian:buster-slim as stage1
+RUN apt-get update && apt --yes install libc-dev libstdc++-8-dev libgcc-8-dev netbase libudev-dev
 COPY --from=stage0 /usr/local/bin/pkgx /usr/local/bin/pkgx
 COPY --from=stage0 /root/.bashrc /root/.bashrc
-RUN apt-get update && apt --yes install libc-dev libstdc++-8-dev libgcc-8-dev netbase libudev-dev
-CMD ["bash"]
+ENV BASH_ENV /root/.bashrc
+SHELL ["/bin/bash", "-c"]
+CMD ["bash", "-i"]

.github/workflows/ci.docker.yaml

@@ -0,0 +1,50 @@
+name: ci·docker
+
+on:
+  pull_request:
+    paths:
+      - .github/Dockerfile
+
+concurrency:
+  group: ci/docker/${{ github.ref }}
+  cancel-in-progress: true
+
+permissions:
+  contents: read
+  packages: write
+
+jobs:
+  build-and-test:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - run: |
+          mkdir products
+          curl https://pkgx.sh/$(uname)/$(uname -m).gz | gunzip > products/$(uname -m)
+          chmod +x products/*
+
+      - run:
+          docker build
+            --tag pkgxdev/pkgx
+            --file .github/Dockerfile
+            .
+
+      - run: |
+          cat <<EoD> Dockerfile
+          FROM pkgxdev/pkgx
+          RUN env +duf && duf
+          RUN if which duf; then exit 1; fi
+          EoD
+
+          docker build --file Dockerfile .
+
+      - run: |
+          cat <<EoD> Dockerfile
+          FROM pkgxdev/pkgx
+          RUN echo '{}' > package.json
+          RUN dev && npm --version
+          RUN if which npm; then exit 1; fi
+          EoD
+
+          docker build --file Dockerfile .

docs/SUMMARY.md

@@ -5,9 +5,9 @@
 ## Run Anywhere
 
 * [`pkgx` & Terminals](run/anywhere/terminals.md)​
+* [`pkgx` & Scripting](run/anywhere/scripts.md)
 * [`pkgx` & Docker](run/anywhere/docker.md)
 * [`pkgx` & CI/CD](run/anywhere/ci-cd.md)
-* [`pkgx` & Scripting](run/anywhere/scripts.md)
 * [`pkgx` & Editors](run/anywhere/editors.md)
 
 

docs/faq.md

@@ -4,7 +4,7 @@
 
 pkgx is just another pkg so:
 
-```
+```sh
 pkgx@latest npx@latest cowsay@latest 'fancy a cuppa?'
 ```
 

docs/run/anywhere/docker.md

@@ -12,30 +12,23 @@ You can use this as a base:
 
 ```Dockerfile
 FROM pkgxdev/pkgx
-RUN env +node@16
-RUN npm start
+RUN pkgx +node@16 npm start
 ```
 
 Or if you want to use `pkgx` in another image:
 
 ```Dockerfile
 FROM archlinux
-RUN eval "$(curl -Ssf --proto '=https' https://pkgx.sh)"
-RUN env +node@16
-RUN npm start
-```
-
-`eval`ing our one-liner also integrates `pkgx` with the container’s shell.
-If you don’t want that you can `curl -Ssf pkgx.sh | sh` instead:
-
-```Dockerfile
-FROM archlinux
-RUN curl -Ssf --proto '=https' https://pkgx.sh
+RUN curl -Ssf --proto '=https' https://pkgx.sh | sh
 RUN pkgx +node@16 npm start
 ```
 
-
 {% hint style="success" %}
 We have binaries for Linux aarch64 (arm64) thus Docker on your Apple Silicon
 Mac is as fast and easy as deployments.
 {% endhint %}
+
+{% hint style="warning" %}
+At this time our shellcode doesn’t work in Docker, but we are working on
+making `pkgx` able to be a proxy shell for these situations.
+{% endhint %}

src/modes/shellcode.ts

@@ -53,6 +53,7 @@ export default function() {
           rm "${tmp}/shellcode/"?.$$
         else
           echo "pkgx: nothing to run" >&2
+          return 1
         fi;;
       *)
         command pkgx -- "$@";;
@@ -110,6 +111,8 @@ export default function() {
         for arg in "$@"; do
           printf "%q " "$arg" >> "$d/x.$$"
         done
+
+        return 127
       else
         echo "cmd not found: $1" >&2
         return 127