futur.blue
objective categorical abstract machine language personal data server
Documentation
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Dockerfile
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Dockerfile
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FROM --platform=linux/amd64 ocaml/opam:debian-12-ocaml-5.2 AS build
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ARG NODE_VERSION=v24.11.1
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ARG OPAM_VERSION=2.5.0
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ARG DUNE_VERSION=3.20.2
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RUN sudo apt-get install -y cmake git libev-dev libffi-dev libgmp-dev libssl-dev libsqlite3-dev libpcre3-dev pkg-config
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···
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RUN opam exec dune pkg lock
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RUN bash -c "source $NVM_DIR/nvm.sh && opam exec dune build -- --release --stop-on-first-error"
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FROM --platform=linux/amd64 debian:12 AS run
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RUN apt-get update && apt-get install -y ca-certificates libev-dev libffi-dev libgmp-dev libssl-dev libsqlite3-dev libpcre3-dev netbase pkg-config
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COPY --from=build /home/opam/pegasus/_build/default/bin/main.exe /bin/pegasus
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COPY --from=build /home/opam/pegasus/_build/default/bin/gen_keys.exe /bin/gen-keys
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ENTRYPOINT ["/bin/pegasus"]
···
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FROM ocaml/opam:debian-12-ocaml-5.2 AS build
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ARG NODE_VERSION=v24.11.1
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ARG OPAM_VERSION=2.5.0
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ARG DUNE_VERSION=3.20.2
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ARG GIT_REV
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ENV GIT_REV=$GIT_REV
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RUN sudo apt-get install -y cmake git libev-dev libffi-dev libgmp-dev libssl-dev libsqlite3-dev libpcre3-dev pkg-config
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···
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RUN opam exec dune pkg lock
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RUN bash -c "source $NVM_DIR/nvm.sh && opam exec dune build -- --release --stop-on-first-error"
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FROM debian:12 AS run
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RUN apt-get update && apt-get install -y ca-certificates libev-dev libffi-dev libgmp-dev libssl-dev libsqlite3-dev libpcre3-dev netbase pkg-config
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RUN mkdir /data
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COPY --from=build /home/opam/pegasus/_build/default/bin/main.exe /bin/pegasus
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COPY --from=build /home/opam/pegasus/_build/default/bin/gen_keys.exe /bin/gen-keys
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ENTRYPOINT ["/bin/pegasus"]
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LABEL org.opencontainers.image.source=https://tangled.org/futur.blue/pegasus
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LABEL org.opencontainers.image.description="pegasus, an atproto pds"
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LABEL org.opencontainers.image.licenses=MPL-2.0
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README.md
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README.md
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# pegasus
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is an [atproto PDS](https://atproto.com/guides/glossary#pds-personal-data-server), along with an assortment of atproto-relevant libraries, written in OCaml.
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## running it
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After cloning this repo, start by running
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```
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docker compose build
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```
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Next, run
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```
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docker compose run --rm --entrypoint gen-keys pds
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```
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to generate some of the environment variables you'll need.
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Head to [`docker-compose.yaml`](docker-compose.yaml) and fill in the environment variables marked as required. See [Environment](#environment) for further details on configuration.
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After that, run
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```
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docker compose up -d
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```
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to start the PDS, then navigate to `https://{PDS_HOSTNAME}/admin` to log in with the admin password you specified and create an invite code or a new account on the PDS.
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## environment
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Documentation for most environment variables can be found in [`docker-compose.yaml`](docker-compose.yaml). There are two optional categories of environment variables that add functionality:
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### SMTP
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The PDS can email users for password changes, identity updates, and account deletion. If these environment variables are not set, emails will instead be logged to the process' stdout.
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- `PDS_SMTP_AUTH_URI` — The URI to connect to the mail server. This should look like `smtp[s]://user:pass@host[:port]`.
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- `PDS_SMTP_STARTTLS=false` — Whether to use STARTTLS when connecting to the mail server. Defaults to false. If true, the connection will default to port 587. If false, the connection will default to port 465. Setting a port in `PDS_SMTP_AUTH_URI` will override either one.
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- `PDS_SMTP_SENDER` — The identity to send emails as. Can be an email address (`e@mail.com`) or a mailbox (`Name <e@mail.com>`).
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### S3
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The PDS can be configured to back up server data to and/or store blobs in S3(-compatible storage).
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- `PDS_S3_BLOBS_ENABLED=false` — Whether to store blobs in S3. By default, blobs are stored locally in `{PDS_DATA_DIR}/blobs/[did]/`.
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- `PDS_S3_BACKUPS_ENABLED=false` — Whether to back up data to S3.
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- `PDS_S3_BACKUP_INTERVAL_S=3600` — How often to back up to S3, in seconds.
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- `PDS_S3_ENDPOINT`, `PDS_S3_REGION`, `PDS_S3_BUCKET`, `PDS_S3_ACCESS_KEY`, `PDS_S3_SECRET_KEY` — S3 configuration.
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- `PDS_S3_CDN_URL` — You may optionally set this to redirect `getBlob` requests to `{PDS_S3_CDN_URL}/blobs/{did}/{cid}`. When unset, blobs will be fetched either from local storage or from S3, depending on `PDS_S3_BLOBS_ENABLED`.
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## development
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This repo contains several libraries in addition to the `pegasus` PDS:
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| library | description |
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|----------|-------------|
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| frontend | The PDS frontend, containing the admin dashboard and account page. |
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| ipld | A mostly [DASL-compliant](https://dasl.ing/) implementation of [CIDs](https://dasl.ing/cid.html), [CAR](https://dasl.ing/car.html), and [DAG-CBOR](https://dasl.ing/drisl.html). |
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| kleidos | An atproto-valid interface for secp256k1 and secp256r1 key management, signing/verifying, and encoding/decoding. |
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| mist | A [Merkle Search Tree](https://atproto.com/specs/repository#mst-structure) implementation for data repository purposes. |
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| pegasus | The PDS implementation. |
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To start developing, you'll need:
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- [`opam`](https://opam.ocaml.org/doc/Install.html), the OCaml Package Manager
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- and the following packages, or their equivalents on your operating system: `cmake git libev-dev libffi-dev libgmp-dev libssl-dev libsqlite3-dev libpcre3-dev pkg-config`
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Start by creating an opam switch; similar to a Python virtual environment, storing the dependencies for this project and a specific compiler version. After that, install [`dune`](https://dune.build), the build system/package manager pegasus uses.
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```
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opam switch create . 5.2.1
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opam install dune
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```
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You may need to run `eval $(opam env)` for this to work. Next, run
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```
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dune pkg lock
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```
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to solve dependencies.
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Finally, after setting the required environment variables (see [Environment](#environment)), either run
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```
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dune exec pegasus
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```
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to run the program directly, or
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```
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dune build
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```
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to produce an executable that you'll likely find in `_build/default/bin`.
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For development, you'll also want to run
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```
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dune tools exec ocamlformat
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dune tools exec ocamllsp
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```
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to download the formatter and LSP services. You can run `dune fmt` to format the project.
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The [frontend](frontend) is written in [MLX](https://github.com/ocaml-mlx/mlx), a JSX-ish OCaml dialect. To format it, you'll need to `opam install ocamlformat-mlx`, then `ocamlformat-mlx -i frontend/**/*.mlx`. You'll see a few errors on formatting files containing `[%browser_only]`; I'm waiting on the next release of `mlx` to fix those.
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docker-compose.yaml
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docker-compose.yaml
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services:
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pds:
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build: .
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image: ghcr.io/futurgh/pegasus:latest
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ports:
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- "8008:8008"
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volumes:
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- pds:/data
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environment:
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# (optional) debug, info, warn, or error
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# default: info
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# - PDS_LOG_LEVEL=info
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# (optional) directory where databases and blobs will be stored
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# default: ./data [relative to cwd]
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- PDS_DATA_DIR=./data
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# (required) hostname where this PDS is running
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# for handles to work, you should configure *.hostname and hostname to point to this server
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# make sure to also set this env var for the caddy container below
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- PDS_HOSTNAME=
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# (optional) the PDS's DID
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# default: did:web:{hostname}
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# - PDS_DID=
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# (optional) whether an invite code is needed to create an account
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# default: true
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# - PDS_INVITE_CODE_REQUIRED=true
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# (required) the rotation key the PDS will use, in multibase format
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# tip: run the `gen-keys` binary to generate this
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- PDS_ROTATION_KEY=
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# (required) the key used to sign JWKs
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# tip: run the `gen-keys` binary to generate this
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- PDS_JWK_MULTIBASE=
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# (required) the PDS admin password
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# this can be used to access com.atproto.admin.* endpoints as well as the /admin dashboard
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- PDS_ADMIN_PASSWORD=
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# (optional) relays/crawlers to inform to subscribe to this PDS, comma-separated
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# default: https://bsky.network
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# - PDS_CRAWLERS=https://bsky.network
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# (optional [but recommended]): a secret token used to generate DPoP nonces; 32 bytes, base64url
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# tip: run the `gen-keys` binary to generate this
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# - PDS_DPOP_NONCE_SECRET=
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# (optional) email config (see readme for details)
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# auth uri should look like smtp[s]://user:pass@host[:port]
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# sender should look like e@mail.com or Name <e@mail.com>
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# without setting these, emails will be logged to stdout
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# - PDS_SMTP_STARTTLS=false
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# - PDS_SMTP_AUTH_URI=
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# - PDS_SMTP_SENDER=
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# (optional) S3 config (see readme for details)
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# set these to back up your databases and/or blobs to S3(-compatible storge)
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# - PDS_S3_BLOBS_ENABLED=false
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# - PDS_S3_BACKUPS_ENABLED=false
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# - PDS_S3_BACKUP_INTERVAL_S=3600
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# - PDS_S3_ENDPOINT=
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# - PDS_S3_REGION=
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# - PDS_S3_BUCKET=
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# - PDS_S3_ACCESS_KEY=
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# - PDS_S3_SECRET_KEY=
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# - PDS_S3_CDN_URL=
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restart: unless-stopped
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caddy:
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image: caddy:2-alpine
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ports:
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- "80:80"
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- "443:443"
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volumes:
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- ./Caddyfile:/etc/caddy/Caddyfile:ro
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- caddy-data:/data
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- caddy-config:/config
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environment:
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- PDS_HOSTNAME=
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restart: unless-stopped
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volumes:
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pds:
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driver: local
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caddy-data:
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driver: local
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caddy-config:
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driver: local
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dune
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dune
···
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(with-stdout-to
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%{null}
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(run ocaml-crunch -e sql -m plain ./user_store -o %{target})))))
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(subdir
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pegasus/lib
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(rule
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(target version.ml)
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(deps (universe))
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(action
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(with-stdout-to
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%{target}
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(bash "echo 'let commit_hash = \"'${GIT_REV:=$(git rev-parse --short HEAD 2>/dev/null || echo 'dev')}'\"'")))))
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pegasus/lib/api/health.ml
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pegasus/lib/api/health.ml