feat: add devcontiner support

.devcontainer/Dockerfile

@@ -0,0 +1,28 @@
+# Use the base Ubuntu devcontainer image.
+FROM mcr.microsoft.com/devcontainers/base:ubuntu
+
+# Install additional packages.
+RUN apt-get update && \
+    apt-get install -y curl software-properties-common ca-certificates
+
+RUN update-ca-certificates
+
+# Install Packer
+RUN sudo mkdir -m 0755 -p /etc/apt/keyrings/ && \ 
+    curl -fsSL https://apt.releases.hashicorp.com/gpg | sudo gpg --dearmor -o /etc/apt/keyrings/hashicorp-packer.gpg && \
+    sudo echo "deb [arch=amd64, signed-by=/etc/apt/keyrings/hashicorp-packer.gpg] https://apt.releases.hashicorp.com $(lsb_release -cs) main" | sudo tee /etc/apt/sources.list.d/hashicorp-packer.list > /dev/null && \
+    sudo chmod 0644 /etc/apt/keyrings/hashicorp-packer.gpg && \
+    sudo apt-get update && sudo apt-get install packer
+
+# Install Python3 and Ansible.
+RUN add-apt-repository --yes --update ppa:ansible/ansible && \
+    apt-get update && \
+    apt-get install -y python3 python3-pip ansible
+
+# Cleanup.
+RUN apt-get autoremove -y && \
+    apt-get clean && \
+    rm -rf /var/lib/apt/lists/*
+
+# Set PATH
+ENV PATH="$HOME/.local/bin:$PATH"