initial commit

Dockerfile

@@ -0,0 +1,45 @@
+# Debian Bookworm image with basic tools, kubectl and k3d
+FROM debian:bookworm-slim
+
+LABEL maintainer="you <you@example.com>"
+
+ENV DEBIAN_FRONTEND=noninteractive
+ENV PATH="/usr/local/bin:${PATH}"
+
+SHELL ["/bin/bash", "-o", "pipefail", "-c"]
+
+RUN set -eux; \
+    apt-get update; \
+    apt-get upgrade -y; \
+    apt-get install -y --no-install-recommends \
+        ca-certificates curl gnupg lsb-release wget git vim less procps iproute2 bash; \
+    apt-get clean; \
+    rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*;
+
+# Install modern Docker CLI (docker-ce-cli) from Docker's official APT repository
+RUN set -eux; \
+    apt-get update; \
+    apt-get install -y --no-install-recommends gnupg2; \
+    mkdir -p /etc/apt/keyrings; \
+    curl -fsSL https://download.docker.com/linux/debian/gpg | gpg --dearmor -o /etc/apt/keyrings/docker.gpg; \
+    echo "deb [arch=amd64 signed-by=/etc/apt/keyrings/docker.gpg] https://download.docker.com/linux/debian $(lsb_release -cs) stable" > /etc/apt/sources.list.d/docker.list; \
+    apt-get update; \
+    apt-get install -y --no-install-recommends docker-ce-cli; \
+    apt-get purge -y --auto-remove gnupg2; \
+    rm -rf /etc/apt/keyrings/docker.gpg /etc/apt/sources.list.d/docker.list /var/lib/apt/lists/* /tmp/* /var/tmp/*;
+
+# Install kubectl (stable)
+RUN set -eux; \
+    KUBECTL_VERSION="$(curl -L -s https://dl.k8s.io/release/stable.txt)"; \
+    curl -fsSLO "https://dl.k8s.io/release/${KUBECTL_VERSION}/bin/linux/amd64/kubectl"; \
+    install -o root -g root -m 0755 kubectl /usr/local/bin/kubectl; \
+    rm -f kubectl; \
+    kubectl version --client --kubeconfig=/dev/null || true
+
+# Install k3d via official install script (use --no-sudo; -b is not supported)
+RUN set -eux; \
+    curl -fsSL https://raw.githubusercontent.com/k3d-io/k3d/main/install.sh | bash -s -- --no-sudo; \
+    command -v k3d >/dev/null && k3d --version || true
+
+# Default to an interactive shell
+CMD ["/bin/bash"]