├── Dockerfile
├── README.md
└── litestream
    ├── etc
        ├── litestream.primary.yml
        └── litestream.replica.yml
    └── start.sh


/Dockerfile:
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 1 | FROM litestream/litestream:pr-349 AS litestream
 2 | 
 3 | # Use the Go image to build our application.
 4 | FROM debian:stable-slim
 5 | 
 6 | # Some utils for local dev
 7 | RUN apt update && apt install -y procps sqlite3 
 8 | 
 9 | # Copy the present working directory to our source directory in Docker.
10 | # Change the current directory in Docker to our source directory.
11 | COPY litestream /litestream
12 | WORKDIR /litestream
13 | # Download the static build of Litestream directly into the path & make it executable.
14 | # This is done in the builder and copied as the chmod doubles the size.
15 | # ADD https://github.com/benbjohnson/litestream/releases/download/v0.3.8/litestream-v0.3.8-linux-amd64-static.tar.gz /tmp/litestream.tar.gz
16 | # RUN mkdir -p /litestream/bin && tar -C /litestream/bin -xzf /tmp/litestream.tar.gz
17 | 
18 | COPY --from=litestream /usr/local/bin/litestream /litestream/bin/litestream
19 | 
20 | # Create data directory (although this will likely be mounted too)
21 | RUN mkdir -p /data
22 | 
23 | ENV DATABASE_URL=file:/data/sqlite.db
24 | 
25 | EXPOSE 9090
26 | CMD [ "/litestream/start.sh" ]
27 | 
28 | 


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/README.md:
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 1 | # Litestream Base
 2 | 
 3 | Add this to an existing Dockerfile as a stage:
 4 | 
 5 | 
 6 | ```Dockerfile
 7 | FROM flyio/litestream-base as litestream
 8 | ```
 9 | 
10 | Then, add these lines to the final stage:
11 | 
12 | ```Dockerfile
13 | ## near the top of your dockerfile
14 | COPY --from=litestream /litestream /litestream
15 | 
16 | 
17 | # Replace your CMD with the litestream wrapper command
18 | 
19 | CMD [ "/litestream/start.sh" , "<your-CMD>"]
20 | ```


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/litestream/etc/litestream.primary.yml:
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1 | 
2 | addr: ":9090"
3 | 
4 | dbs:
5 |   - path: ${LITESTREAM_DB_URL}
6 | 


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/litestream/etc/litestream.replica.yml:
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1 | addr: ":9091"
2 | 
3 | dbs:
4 |   - path: ${LITESTREAM_DB_URL}
5 |     upstream:
6 |       path: ${LITESTREAM_DB_URL}
7 |       url: http://localhost:9090


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/litestream/start.sh:
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 1 | #!/bin/bash
 2 | set -e
 3 | 
 4 | path_prefix="file:"
 5 | export LITESTREAM_DB_URL=${DATABASE_URL#"$path_prefix"}
 6 | echo "Primary: $FLY_PRIMARY_REGION, Current: $FLY_REGION, DB URL: ${LITESTREAM_DB_URL}"
 7 | # Determine which configuration file to use based on region.
 8 | if [ "$FLY_REGION" == "$FLY_PRIMARY_REGION" ]
 9 | then
10 | 	echo "Configuring Litestream primary"
11 | 	cp -f /litestream/etc/litestream.primary.yml /etc/litestream.yml
12 | else
13 | 	echo "Configuring Litestream replica"
14 | 	cp -f /litestream/etc/litestream.replica.yml /etc/litestream.yml
15 | fi
16 | 
17 | if [ $# -eq 0 ]
18 | then
19 | 	exec /litestream/bin/litestream replicate	
20 | else
21 | 	# Run litestream with your app as the subprocess.
22 | 	exec /litestream/bin/litestream replicate --exec "$@"
23 | fi
24 | 
25 | 


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