doman/cannibal
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well, fixed some problems with path etc but works now

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This commit is contained in:
Piotr Domański 2026-04-03 21:18:05 +02:00
parent 256e9b9fc6
commit e93831009c
4 changed files with 7 additions and 12 deletions
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4
Dockerfile
View file

@ -1,15 +1,15 @@
ARG ALPINE_VERSION=3.21 ARG ALPINE_VERSION=3.21
FROM alpine:${ALPINE_VERSION} FROM alpine:${ALPINE_VERSION}
# Re-declare after FROM — build ARGs don't persist across FROM
ARG SUPERCRONIC_VERSION=0.2.33 ARG SUPERCRONIC_VERSION=0.2.33
# TARGETARCH is auto-set by buildx per platform: "amd64", "arm64", etc.
ARG TARGETARCH ARG TARGETARCH
RUN apk add --no-cache docker-cli RUN apk add --no-cache docker-cli
ADD https://github.com/aptible/supercronic/releases/download/v${SUPERCRONIC_VERSION}/supercronic-linux-${TARGETARCH} \ ADD https://github.com/aptible/supercronic/releases/download/v${SUPERCRONIC_VERSION}/supercronic-linux-${TARGETARCH} \
/usr/local/bin/supercronic /usr/local/bin/supercronic
RUN chmod +x /usr/local/bin/supercronic RUN chmod 755 /usr/local/bin/supercronic
# Match GID to your host's docker group. Check with: stat -c '%g' /var/run/docker.sock # Match GID to your host's docker group. Check with: stat -c '%g' /var/run/docker.sock
ARG DOCKER_GID=999 ARG DOCKER_GID=999

3
build.sh
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@ -1,7 +1,7 @@
#!/bin/sh #!/bin/sh
set -e set -e
IMAGE="${IMAGE:-docker-pruner}" IMAGE="${IMAGE:-registry.domandoman.xyz/cannibal}"
TAG="${TAG:-latest}" TAG="${TAG:-latest}"
DOCKER_GID="${DOCKER_GID:-$(stat -c '%g' /var/run/docker.sock)}" DOCKER_GID="${DOCKER_GID:-$(stat -c '%g' /var/run/docker.sock)}"
SUPERCRONIC_VERSION="${SUPERCRONIC_VERSION:-0.2.33}" SUPERCRONIC_VERSION="${SUPERCRONIC_VERSION:-0.2.33}"
@ -25,4 +25,5 @@ docker buildx build \
--build-arg SUPERCRONIC_VERSION="${SUPERCRONIC_VERSION}" \ --build-arg SUPERCRONIC_VERSION="${SUPERCRONIC_VERSION}" \
--build-arg DOCKER_GID="${DOCKER_GID}" \ --build-arg DOCKER_GID="${DOCKER_GID}" \
--tag "${IMAGE}:${TAG}" \ --tag "${IMAGE}:${TAG}" \
--push \
. .

8
docker-compose.yml
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@ -1,14 +1,8 @@
services: services:
cannibal: cannibal:
image: cannibal:latest image: registry.domandoman.xyz/cannibal:latest
build:
context: .
args:
DOCKER_GID: "${DOCKER_GID:-999}"
restart: unless-stopped restart: unless-stopped
environment: environment:
PRUNE_SCHEDULE: "0 3 * * *" # every day at 3am PRUNE_SCHEDULE: "0 3 * * *" # every day at 3am
volumes: volumes:
- /var/run/docker.sock:/var/run/docker.sock - /var/run/docker.sock:/var/run/docker.sock
group_add:
- "${DOCKER_GID:-999}"

4
entrypoint.sh
View file

@ -5,6 +5,6 @@ echo "Docker pruner starting as $(whoami). Schedule: ${PRUNE_SCHEDULE}"
# Write crontab from env var at runtime # Write crontab from env var at runtime
CRONTAB_FILE=/tmp/crontab CRONTAB_FILE=/tmp/crontab
echo "${PRUNE_SCHEDULE} docker system prune -af >> /tmp/prune.log 2>&1" > "${CRONTAB_FILE}" echo "${PRUNE_SCHEDULE} /bin/sh -c '/usr/bin/docker system prune -af >> /tmp/prune.log 2>&1'" > "${CRONTAB_FILE}"
exec supercronic "${CRONTAB_FILE}" exec /usr/local/bin/supercronic "${CRONTAB_FILE}"