add devcontainer for rke2

.devcontainer/rke2/Dockerfile

@@ -0,0 +1,26 @@
+FROM mcr.microsoft.com/devcontainers/python:1-3.12-bookworm
+
+# enable git bash completion
+RUN ln -s /usr/share/bash-completion/completions/git /usr/share/bash-completion/bash_completion
+
+# install sshpass for ansible SSH password auth and vim just in case
+RUN apt-get update && apt-get upgrade -y
+RUN apt-get install -y sshpass vim
+RUN apt-get clean
+
+# install ansible and ansible-lint
+RUN python3 -m pip install ansible-core~=2.16.6 ansible-lint~=24.2.3
+
+# create /workspace directory
+WORKDIR /workspace
+RUN chown -R vscode:vscode /workspace
+
+# run commands as non-root user
+USER vscode
+
+# make prompt multiline cause it's too long by default
+RUN sed -i -E -e '/PS1="\$/c\    PS1="${userpart} ${lightblue}\\w ${gitbranch}${removecolor}\\n\\$ "' ~/.bashrc
+
+# install collection requirements
+COPY collections/requirements.yaml .
+RUN ansible-galaxy collection install -r requirements.yaml