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Toolbox/base/Dockerfile

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+FROM debian:stable
+
+# Prevent interactive prompts during package installation
+ENV DEBIAN_FRONTEND=noninteractive
+
+# Install fish shell and other basic utilities as root during build
+RUN apt-get update && \
+    apt-get install -y --no-install-recommends \
+        fish=4.0.2-1 \
+        curl=8.14.1-2 \
+        wget=1.25.0-2 \
+        jq=1.7.1-6+deb13u1 \
+        git=1:2.47.3-0+deb13u1 \
+        openssh-client=1:10.0p1-7 \
+        vim=2:9.1.1230-2 \
+        netcat-openbsd=1.229-1 \
+        ripgrep=14.1.1-1+b4 \
+        fzf=0.60.3-1+b2 \
+        unzip=6.0-29 \
+        zip=3.0-15 \
+        htop=3.4.1-5 \
+        tree=2.2.1-1 \
+        less=668-1 \
+        rsync=3.4.1+ds1-5 \
+        iputils-ping=3:20240905-3 \
+        procps=2:4.0.4-9 \
+        lsof=4.99.4+dfsg-2 \
+        strace=6.13+ds-1 \
+        tcpdump=4.99.5-2 \
+        gnupg2=2.4.7-21 \
+        gnupg-agent=2.4.7-21 \
+        apt-transport-https=3.0.3 \
+        lsb-release=12.1-1 \
+        bind9-dnsutils=1:9.20.15-1~deb13u1 \
+        ca-certificates=20250419 \
+        docker.io=26.1.5+dfsg1-9+b9 \
+        docker-cli=26.1.5+dfsg1-9+b9 \
+        && \
+    # Clean up package cache \
+    rm -rf /var/lib/apt/lists/*
+
+# Create the user during build process with specific UID/GID
+RUN groupadd -r tsysdevstack && useradd -r -m -g tsysdevstack -s /usr/bin/fish tsysdevstack
+
+# Add tsysdevstack user to the existing docker group
+RUN usermod -aG docker tsysdevstack
+
+# Set the fish shell as default for the user
+RUN echo "if [ \"\$SHELL\" != \"/usr/bin/fish\" ]; then exec fish; fi" >> /home/tsysdevstack/.bashrc
+
+# Change to the tsysdevstack user
+USER tsysdevstack
+
+# Set the home directory
+WORKDIR /home/tsysdevstack
+
+# Set default shell to fish
+SHELL ["/usr/bin/fish"]
+
+# Default command when container starts
+CMD ["fish"]