41 lines
1.6 KiB
Bash
41 lines
1.6 KiB
Bash
#!/usr/bin/env bash
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set -e
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# Function to preserve and update container
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preserve_and_update_container() {
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local container=$1
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local image=$(docker inspect --format '{{.Config.Image}}' "$container")
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# Pull the latest image version
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docker pull $image
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# Compare image IDs to determine if an update is needed
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local latest_image_id=$(docker inspect --format '{{.Id}}' $image)
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local container_image_id=$(docker inspect --format '{{.Image}}' "$container")
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if [[ "$latest_image_id" != "$container_image_id" ]]; then
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echo "Updating $container..."
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# Capture current configurations
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local env_vars=$(docker inspect $container --format '{{range .Config.Env}}{{println .}}{{end}}')
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local volumes=$(docker inspect $container --format '{{range .Mounts}}{{println .Source ":" .Destination}}{{end}}')
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local network=$(docker network ls --filter id=$(docker inspect $container --format '{{.HostConfig.NetworkMode}}') --format '{{.Name}}')
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# Remove the outdated container
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docker rm -f $container
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# Recreate the container with the same configurations
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docker run -d --name $container $(echo "$env_vars" | xargs -I {} echo --env '{}') $(echo "$volumes" | xargs -I {} echo -v '{}') --network="$network" $image
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echo "$container updated successfully."
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else
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echo "$container is already up to date."
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fi
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}
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# Iterate over all running containers
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for container in $(docker ps --format "{{.Names}}"); do
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preserve_and_update_container $container
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done
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echo "Container update check complete while preserving existing container configurations."
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