From 9d13cbae070e6716cbfd93680282d13ea375e1ed Mon Sep 17 00:00:00 2001
From: Milas Bowman <milas.bowman@docker.com>
Date: Wed, 6 Sep 2023 17:42:12 -0400
Subject: [PATCH] test: add a fully containerized (via Compose) e2e setup

`dind.compose.yaml` has a Docker-in-Docker setup, which is then
referenced via `include` in `e2e.compose.yaml`.

Not all tests currently pass, as some rely on bind mounts, for
example.

Signed-off-by: Milas Bowman <milas.bowman@docker.com>
---
 Dockerfile        | 30 ++++++++++++++++++++++++++
 dind.compose.yaml | 55 +++++++++++++++++++++++++++++++++++++++++++++++
 e2e.compose.yaml  | 17 +++++++++++++++
 3 files changed, 102 insertions(+)
 create mode 100644 dind.compose.yaml
 create mode 100644 e2e.compose.yaml

diff --git a/Dockerfile b/Dockerfile
index c282f758e8..13b1ed33b0 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -32,6 +32,15 @@ FROM crazymax/osxcross:11.3-alpine AS osxcross
 
 FROM golangci/golangci-lint:${GOLANGCI_LINT_VERSION}-alpine AS golangci-lint
 FROM ghcr.io/google/addlicense:${ADDLICENSE_VERSION} AS addlicense
+FROM docker.io/curlimages/curl AS curl
+
+FROM --platform=${BUILDPLATFORM} alpine AS gotestsum
+
+ARG TARGETARCH
+ARG GOTESTSUM_VERSION=1.10.1
+ADD https://github.com/gotestyourself/gotestsum/releases/download/v${GOTESTSUM_VERSION}/gotestsum_${GOTESTSUM_VERSION}_linux_${TARGETARCH}.tar.gz /tmp/
+RUN mkdir /out && \
+    tar xzf /tmp/gotestsum_${GOTESTSUM_VERSION}_linux_arm64.tar.gz -C /out
 
 FROM --platform=${BUILDPLATFORM} golang:${GO_VERSION}-alpine AS base
 COPY --from=xx / /
@@ -112,6 +121,27 @@ RUN --mount=type=bind,target=. \
 FROM scratch AS test-coverage
 COPY --from=test --link /tmp/coverage /
 
+FROM build-base AS e2e-build
+
+RUN --mount=type=bind,target=. \
+    --mount=type=cache,target=/root/.cache \
+    --mount=type=cache,target=/go/pkg/mod \
+    go test -c -o /out/compose.e2e.test --tags=standalone ./pkg/e2e
+
+FROM base AS e2e
+
+COPY --link --from=curl /usr/bin/curl /usr/local/bin/
+COPY --link --from=gotestsum /out/gotestsum /usr/local/bin/
+
+USER 1000
+ENV USER=moby
+COPY --link --from=build /out/docker-compose /src/bin/build/
+COPY ./pkg/e2e /src/pkg/e2e
+COPY --link --from=e2e-build /out/compose.e2e.test /src/pkg/e2e/
+
+WORKDIR /src/pkg/e2e
+CMD gotestsum --format=testname --raw-command -- go tool test2json -t -p e2e ./compose.e2e.test -test.v -test.count=1 -test.parallel=1
+
 FROM base AS license-set
 ARG LICENSE_FILES
 RUN --mount=type=bind,target=.,rw \
diff --git a/dind.compose.yaml b/dind.compose.yaml
new file mode 100644
index 0000000000..44447500f9
--- /dev/null
+++ b/dind.compose.yaml
@@ -0,0 +1,55 @@
+services:
+  docker:
+    image: ${DIND_IMAGE:-docker.io/docker}:${DIND_TAG:-git}
+    privileged: true
+    environment:
+      DOCKER_TLS_CERTDIR: /certs
+    volumes:
+      - type: volume
+        source: dind-sock
+        target: /var/run
+      - type: volume
+        source: dind-certs-ca
+        target: /certs/ca
+      - type: volume
+        source: dind-certs-client
+        target: /certs/client
+    networks: [dind]
+    healthcheck:
+      test: ["CMD", "docker", "version", "--format='{{ .Server.Version }}'"]
+      interval: 1s
+      # start_interval: 1s
+      start_period: 15s
+      timeout: 5s
+
+  cli-sock:
+    image: ${DIND_IMAGE:-docker.io/docker}:${DIND_CLI_TAG:-cli}
+    command: ["docker", "version"]
+    volumes:
+      - type: volume
+        source: dind-sock
+        target: /var/run
+    depends_on:
+      docker:
+        condition: service_healthy
+  cli-tls:
+    image: ${DIND_IMAGE:-docker.io/docker}:${DIND_CLI_TAG:-cli}
+    environment:
+      DOCKER_TLS_CERTDIR: /certs
+    volumes:
+      - type: volume
+        source: dind-certs-client
+        target: /certs/client
+    command: [ "docker", "version" ]
+    depends_on:
+      docker:
+        condition: service_healthy
+    networks: [dind]
+
+volumes:
+  dind-certs-ca:
+  dind-certs-client:
+  dind-sock:
+
+networks:
+  dind:
diff --git a/e2e.compose.yaml b/e2e.compose.yaml
new file mode 100644
index 0000000000..e4a05d6010
--- /dev/null
+++ b/e2e.compose.yaml
@@ -0,0 +1,17 @@
+include:
+  - ./dind.compose.yaml
+
+services:
+  e2e:
+    pull_policy: build
+    build:
+      context: .
+      target: e2e
+    volumes:
+      - type: volume
+        source: dind-sock
+        target: /var/run
+    network_mode: service:docker
+    depends_on:
+      docker:
+        condition: service_healthy