Finish building Postgres support

This includes:
 - Building a Docker image for Postgres as well as SQLite
 - Fuller instructions for usage of the package, including the Postgres builds.

A few related things changed here:
 - `.env` is not used anymore -- the defaults in the Dockerfiles are
   sufficient
 - The Rust version in the Dockerfiles is increased to match the MSRV,
   and with it the Alpine version bumped to one built with that Rust
   version.
 - Cargo dependencies on native-tls and openssl updated to include only
   the `vendored` feature, so as not to require a system openssl
   installation.
 - Two GitHub jobs are set up, to build the two different Docker images
 - The documentation incorrectly suggested using `DELETE .. CASCADE` to
   delete clients. This syntax does not exist, as the cascading delete
   is configured in the schema.

Author: djmitche

.dockerignore

@@ -4,4 +4,5 @@
 !core/
 !server/
 !sqlite/
-!docker-entrypoint.sh
+!postgres/
+!entrypoint-*

.env

@@ -6,15 +6,47 @@ on:
       - '*'
 
 jobs:
-  docker:
+  sqlite:
     runs-on: ubuntu-latest
     steps:
-      - name: Checkout
-        uses: actions/checkout@v4
-      - name: Load .env file
-        uses: xom9ikk/dotenv@v2
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
       - name: Set up QEMU
         uses: docker/setup-qemu-action@v3
+      - name: Login to ghcr.io
+        uses: docker/login-action@v3
+        with:
+          registry: ghcr.io
+          username: ${{ github.repository_owner }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+      - name: Docker meta
+        id: meta-sqlite
+        uses: docker/metadata-action@v5
+        with:
+          images: |
+            ghcr.io/gothenburgbitfactory/taskchampion-sync-server
+          tags: |
+            type=ref,event=branch
+            type=semver,pattern={{version}}
+            type=semver,pattern={{major}}.{{minor}}
+            type=match,pattern=\d.\d.\d,value=latest
+      - name: Build and push
+        uses: docker/build-push-action@v6
+        with:
+          context: .
+          path: "{context}/Dockerfile-sqlite"
+          platforms: linux/amd64,linux/arm64
+          push: true
+          tags: ${{ steps.meta-sqlite.outputs.tags }}
+          labels: ${{ steps.meta-sqlite.outputs.labels }}
+          build-args: |
+            ALPINE_VERSION=${{ env.ALPINE_VERSION }}
+            RUST_VERSION=${{ env.RUST_VERSION }}
+  postgres:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Load .env file
+        uses: xom9ikk/dotenv@v2
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3
       - name: Login to ghcr.io
@@ -24,11 +56,11 @@ jobs:
           username: ${{ github.repository_owner }}
           password: ${{ secrets.GITHUB_TOKEN }}
       - name: Docker meta
-        id: meta
+        id: meta-postgres
         uses: docker/metadata-action@v5
         with:
           images: |
-            ghcr.io/${{ github.repository }}
+            ghcr.io/gothenburgbitfactory/taskchampion-sync-server-postgres
           tags: |
             type=ref,event=branch
             type=semver,pattern={{version}}
@@ -38,10 +70,11 @@ jobs:
         uses: docker/build-push-action@v6
         with:
           context: .
+          path: "{context}/Dockerfile-postgres"
           platforms: linux/amd64,linux/arm64
           push: true
-          tags: ${{ steps.meta.outputs.tags }}
-          labels: ${{ steps.meta.outputs.labels }}
+          tags: ${{ steps.meta-postgres.outputs.tags }}
+          labels: ${{ steps.meta-postgres.outputs.labels }}
           build-args: |
             ALPINE_VERSION=${{ env.ALPINE_VERSION }}
             RUST_VERSION=${{ env.RUST_VERSION }}

.github/workflows/docker.yml

@@ -30,3 +30,6 @@ tokio = { version = "*", features = ["rt", "macros"] }
 tokio-postgres = { version = "0.7.13", features = ["with-uuid-1"] }
 bb8 = "0.9.0"
 bb8-postgres = { version = "0.9.0", features = ["with-uuid-1"] }
+openssl = { version = "0.10.73", default-features = false, features = ["vendored"] }
+native-tls = { version = "0.2.14", default-features = false, features = ["vendored"] }
+postgres-native-tls = "0.5.1"

Cargo.lock

@@ -0,0 +1,26 @@
+# Versions must be major.minor
+# Default versions are as below
+ARG RUST_VERSION=1.85
+ARG ALPINE_VERSION=3.20
+
+FROM docker.io/rust:${RUST_VERSION}-alpine${ALPINE_VERSION} AS builder
+# perl and make are required to build openssl.
+RUN apk -U add libc-dev perl make
+COPY Cargo.lock Cargo.toml /data/
+COPY core /data/core/
+COPY server /data/server/
+COPY postgres /data/postgres/
+COPY sqlite /data/sqlite/
+RUN cd /data && \
+  cargo build -p taskchampion-sync-server --release --no-default-features --features postgres --bin taskchampion-sync-server-postgres
+
+FROM docker.io/alpine:${ALPINE_VERSION}
+COPY --from=builder /data/target/release/taskchampion-sync-server-postgres /bin
+RUN apk add --no-cache su-exec && \
+  adduser -u 1092 -S -D -H -h /var/lib/taskchampion-sync-server -s /sbin/nologin -G users \
+  -g taskchampion taskchampion && \
+  install -d -m1755 -o1092 -g1092 "/var/lib/taskchampion-sync-server"
+EXPOSE 8080
+COPY entrypoint-postgres.sh /bin/entrypoint.sh
+ENTRYPOINT [ "/bin/entrypoint.sh" ]
+CMD [ "/bin/taskchampion-sync-server-postgres" ]

Cargo.toml

@@ -1,16 +1,17 @@
 # Versions must be major.minor
 # Default versions are as below
-ARG RUST_VERSION=1.78
-ARG ALPINE_VERSION=3.19
+ARG RUST_VERSION=1.85
+ARG ALPINE_VERSION=3.20
 
 FROM docker.io/rust:${RUST_VERSION}-alpine${ALPINE_VERSION} AS builder
+RUN apk -U add libc-dev
 COPY Cargo.lock Cargo.toml /data/
 COPY core /data/core/
 COPY server /data/server/
+COPY postgres /data/postgres/
 COPY sqlite /data/sqlite/
-RUN apk -U add libc-dev && \
-  cd /data && \
-  cargo build --release
+RUN cd /data && \
+  cargo build --release --bin taskchampion-sync-server
 
 FROM docker.io/alpine:${ALPINE_VERSION}
 COPY --from=builder /data/target/release/taskchampion-sync-server /bin
@@ -20,6 +21,6 @@ RUN apk add --no-cache su-exec && \
   install -d -m1755 -o1092 -g1092 "/var/lib/taskchampion-sync-server"
 EXPOSE 8080
 VOLUME /var/lib/taskchampion-sync-server/data
-COPY docker-entrypoint.sh /bin
-ENTRYPOINT [ "/bin/docker-entrypoint.sh" ]
+COPY entrypoint-sqlite.sh /bin/entrypoint.sh
+ENTRYPOINT [ "/bin/entrypoint.sh" ]
 CMD [ "/bin/taskchampion-sync-server" ]

Dockerfile-postgres

@@ -60,7 +60,7 @@ cargo build --release
 After build the binary is located in
 `target/release/taskchampion-sync-server`.
 
-#### Building the Postgres backend
+#### Building the Postgres Backend
 
 The storage backend is controlled by Cargo features `postres` and `sqlite`.
 By default, only the `sqlite` feature is enabled.

Dockerfile Dockerfile-sqliteDockerfile renamed to Dockerfile-sqlite

@@ -2,4 +2,10 @@
 
 - [Introduction](./introduction.md)
 - [Usage](./usage.md)
+  - [Docker Compose](./usage/docker-compose.md)
+  - [Docker Images](./usage/docker-images.md)
+  - [Binaries](./usage/binaries.md)
 - [Integration](./integration.md)
+  - [Pre-built Images](./integration/pre-built.md)
+  - [Rust Crates](./integration/crates.md)
+  - [Sync Protocol Implementation](./integration/protocol-impl.md)