PoC for codespaces configuration

    Gitub Codespaces are dev environment within the browser.
    They provides VM and in browser preconfigured VSCode.
    The idea here is to define a preconfigured codespaces that
    is targeting os-autoinst-distri-opensuse developers.
    The VM image is configured by a Dockerfile and a script.
    The environment is based on openSUSE TW. The image has packages suggested in
    CONTRIBUTING.md plus other packages that are needed be able to run `make tests`.
    The image is provided with non-root user `node`.
    The proposed configuration also provide some pre-installed VSCode
    plugins.

.devcontainer/Dockerfile

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+# Use the specified image
+FROM registry.opensuse.org/opensuse/tumbleweed:latest
+
+ARG USERNAME=node
+ARG USER_UID=1000
+ARG USER_GID=$USER_UID
+
+#RUN useradd podman; \
+#echo podman:10000:5000 > /etc/subuid; \
+#echo podman:10000:5000 > /etc/subgid;
+
+# Create the user
+#RUN groupadd --gid $USER_GID $USERNAME
+#RUN useradd --uid $USER_UID --gid $USER_GID -m $USERNAME \
+#    && echo $USERNAME ALL=\(root\) NOPASSWD:ALL > /etc/sudoers.d/$USERNAME \
+#    && chmod 0440 /etc/sudoers.d/$USERNAME
+
+# Copy the script into the image
+COPY install-dependencies.sh /tmp/install-dependencies.sh
+
+# Run the script
+RUN /tmp/install-dependencies.sh
+
+# Set the default user
+#USER $USERNAME

.devcontainer/devcontainer.json

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+{
+  "build": { "dockerfile": "Dockerfile" },
+  "features": {
+  },
+  "customizations": {
+    "vscode": {
+      "extensions": [
+        "streetsidesoftware.code-spell-checker",
+        "richterger.perl",
+        "ms-python.python",
+        "sfodje.perltidy",
+        "ms-vscode.makefile-tools"
+      ]
+    }
+  },
+  "postCreateCommand": "make prepare",
+  "remoteUser": "user-name-goes-here",
+}

.devcontainer/install-dependencies.sh

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+# Generic update
+zypper dup -y
+
+# dependency suggested in the CONTRIBUTING.md
+zypper in -y os-autoinst-distri-opensuse-deps perl-JSON-Validator gnu_parallel
+
+# other dependency that are needed
+zypper in -y make git vim gcc-c++ libxml2-devel libssh2-devel libexpat-devel dbus-1-devel python311 python311-devel python311-yamllint python311-PyYAML perl-App-cpanminus perl-Code-TidyAll podman