init

.drone.yml

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+kind: pipeline
+type: docker
+name: build
+
+steps:
+  - name: build
+    image: docker:dind
+    volumes:
+      - name: dockersock
+        path: /var/run
+    environment:
+      DOCKER_USERNAME:
+        from_secret: docker_username
+      DOCKER_PASSWORD:
+        from_secret: docker_password
+    commands:
+      - sleep 5 # give docker enough time to start
+      - echo "$DOCKER_PASSWORD" | docker login -u "$DOCKER_USERNAME" --password-stdin
+      - ./build.sh
+    when:
+      branch:
+      - master
+      event:
+      - push
+
+services:
+  - name: docker
+    image: docker:dind
+    privileged: true
+    volumes:
+      - name: dockersock
+        path: /var/run
+    command:
+    - dockerd-entrypoint.sh
+    - dockerd
+    - --host=unix:///var/run/docker.sock
+    - --mtu=1492
+
+volumes:
+  - name: dockersock
+    temp: {}
+
+trigger:
+  branch:
+    - master
+  event:
+    - push
+---
+kind: pipeline
+type: docker
+name: rebuild
+
+steps:
+  - name: rebuild
+    image: docker:dind
+    volumes:
+      - name: dockersock
+        path: /var/run
+    environment:
+      DOCKER_USERNAME:
+        from_secret: docker_username
+      DOCKER_PASSWORD:
+        from_secret: docker_password
+    commands:
+      - sleep 5 # give docker enough time to start
+      - echo "$DOCKER_PASSWORD" | docker login -u "$DOCKER_USERNAME" --password-stdin
+      - ./rebuild.sh
+
+services:
+  - name: docker
+    image: docker:dind
+    privileged: true
+    volumes:
+      - name: dockersock
+        path: /var/run
+    command:
+    - dockerd-entrypoint.sh
+    - dockerd
+    - --host=unix:///var/run/docker.sock
+    - --mtu=1492
+
+volumes:
+  - name: dockersock
+    temp: {}
+
+trigger:
+  event:
+    - cron
+  cron:
+    - rebuild

Dockerfile

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+FROM debian:bookworm-slim
+
+RUN set -eux && \
+    apt-get update && \
+    export DEBIAN_FRONTEND=noninteractive && \
+    apt-get upgrade -y && \
+    apt-get install -y --no-install-recommends \
+        arping \
+        ca-certificates \
+        curl \
+        dnsutils \
+        iproute2 \
+        iptables \
+        iputils-ping \
+        jq \
+        less \
+        locales \
+        mtr-tiny \
+        net-tools \
+        netcat-openbsd \
+        openssh-client \
+        openssl \
+        psmisc \
+        screen \
+        tcpdump \
+        telnet \
+        traceroute \
+        vim \
+    && \
+    rm -rf /var/lib/apt/lists/* && \
+    echo 'en_US.UTF-8 UTF-8' >> /etc/locale.gen && \
+    /usr/sbin/locale-gen && \
+    /usr/sbin/update-locale 'LANG=en_US.UTF-8'
+
+ADD start.sh /
+WORKDIR /root
+CMD /start.sh

README.md

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+# Swiss Army Knife container
+
+* Debian slim based image
+* A lot of tools...
+
+# Supported tags and respective `Dockerfile` links
+
+-	[`latest`](https://git.nethuis.nl/pommi/docker-swiss/Dockerfile)
+
+# Usage
+
+## docker run
+
+```
+$ docker run -it \
+    --name swiss \
+    pommib/swiss:latest
+```

build.sh

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+#!/bin/sh
+
+set -ex
+
+IMAGE=pommib/swiss:latest
+docker pull $IMAGE
+docker pull debian:bookworm-slim
+docker build --no-cache -t $IMAGE ./
+docker push $IMAGE

rebuild.sh

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+#!/bin/sh
+
+updates_available () {
+    docker pull "$1"
+    if test "$(docker run -it --rm "$1" /bin/sh -c 'apt -qqq update && apt -qq list --upgradable')" != ""; then
+        return 0
+    else
+        return 1
+    fi
+}
+
+if updates_available pommib/swiss:latest; then
+    ./build.sh
+fi

start.sh

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+#!/bin/sh
+trap "touch SIGINT.tmp; ls -l; exit" INT TERM
+trap "echo 'really exiting'; exit" EXIT
+echo Starting loop
+while true; do sleep 1; done