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watchtower/scripts/docker-util.sh

125 lines
2.8 KiB
Bash

#!/usr/bin/env bash
# This file is meant to be sourced into other scripts and contain some utility functions for docker e2e testing
CONTAINER_PREFIX=${CONTAINER_PREFIX:-du}
function get-port() {
Container=$1
Port=$2
if [ -z "$Container" ]; then
echo "CONTAINER missing" 1>&2
return 1
fi
if [ -z "$Port" ]; then
echo "PORT missing" 1>&2
return 1
fi
Query=".[].NetworkSettings.Ports[\"$Port/tcp\"] | .[0].HostPort"
docker container inspect "$Container" | jq -r "$Query"
}
function start-registry() {
local Name="$CONTAINER_PREFIX-registry"
echo -en "Starting \e[94m$Name\e[0m container... "
local Port="${1:-5000}"
docker run -d -p 5000:"$Port" --restart=unless-stopped --name "$Name" registry:2
}
function stop-registry() {
try-remove-container "$CONTAINER_PREFIX-registry"
}
function registry-host() {
echo "localhost:$(get-port "$CONTAINER_PREFIX"-registry 5000)"
}
function try-remove-container() {
echo -en "Looking for container \e[95m$1\e[0m... "
local Found
Found=$(container-id "$1")
if [ -n "$Found" ]; then
echo "$Found"
echo -n " Stopping... "
docker stop "$1"
echo -n " Removing... "
docker rm "$1"
else
echo "Not found"
fi
}
function create-dummy-image() {
if [ -z "$1" ]; then
echo "TAG missing"
return 1
fi
local Tag="$1"
local Repo
Repo="$(registry-host)"
local Revision=${2:-$(("$(date +%s)" - "$(date --date='2021-10-21' +%s)"))}
echo -e "Creating new image \e[95m$Tag\e[0m revision: \e[94m$Revision\e[0m"
local BuildDir="/tmp/docker-dummy-$Tag-$Revision"
mkdir -p "$BuildDir"
cat > "$BuildDir/Dockerfile" << END
FROM alpine
RUN echo "Tag: $Tag"
RUN echo "Revision: $Revision"
ENTRYPOINT ["nc", "-lk", "-v", "-l", "-p", "9090", "-e", "echo", "-e", "HTTP/1.1 200 OK\n\n$Tag $Revision"]
END
docker build -t "$Repo/$Tag:latest" -t "$Repo/$Tag:r$Revision" "$BuildDir"
echo -e "Pushing images...\e[93m"
docker push -q "$Repo/$Tag:latest"
docker push -q "$Repo/$Tag:r$Revision"
echo -en "\e[0m"
rm -r "$BuildDir"
}
function query-rev() {
local Name=$1
if [ -z "$Name" ]; then
echo "NAME missing"
return 1
fi
curl -s "localhost:$(get-port "$Name" 9090)"
}
function latest-image-rev() {
local Tag=$1
if [ -z "$Tag" ]; then
echo "TAG missing"
return 1
fi
local ID
ID=$(docker image ls "$(registry-host)"/"$Tag":latest -q)
docker image inspect "$ID" | jq -r '.[].RepoTags | .[]' | grep -v latest
}
function container-id() {
local Name=$1
if [ -z "$Name" ]; then
echo "NAME missing"
return 1
fi
docker container ls -f name="$Name" -q
}
function container-started() {
local Name=$1
if [ -z "$Name" ]; then
echo "NAME missing"
return 1
fi
docker container inspect "$Name" | jq -r .[].State.StartedAt
}