Define services

.editorconfig

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+root = true
+
+[*]
+indent_style = space
+indent_size = 2
+end_of_line = lf
+charset = utf-8
+trim_trailing_whitespace = true
+insert_final_newline = true
+
+[*.md]
+trim_trailing_whitespace = false

account/Dockerfile

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+FROM golang:1.10.2 AS build
+WORKDIR /go/src/app
+COPY . .
+RUN go get -d -v ./...
+RUN env GOOS=linux GARCH=amd64 go install -v -a -tags netgo -installsuffix netgo -ldflags "-linkmode external -extldflags -static"
+
+FROM alpine:3.7
+WORKDIR /usr/bin
+COPY --from=build /go/bin .
+CMD ["app"]

catalog/Dockerfile

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+FROM golang:1.10.2 AS build
+WORKDIR /go/src/app
+COPY . .
+RUN go get -d -v ./...
+RUN env GOOS=linux GARCH=amd64 go install -v -a -tags netgo -installsuffix netgo -ldflags "-linkmode external -extldflags -static"
+
+FROM alpine:3.7
+WORKDIR /usr/bin
+COPY --from=build /go/bin .
+CMD ["app"]

docker-compose.yaml

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+version: "3.6"
+
+services:
+  account:
+    build: "./account"
+    ports:
+      - "8000:8080"
+    depends_on:
+      - "account_db"
+  catalog:
+    build: "./catalog"
+    ports:
+      - "8001:8080"
+    depends_on:
+      - "catalog_db"
+      - "catalog_cache"
+  order:
+    build: "./order"
+    ports:
+      - "8002:8080"
+    depends_on:
+      - "order_db"
+
+  account_db:
+    image: "cockroachdb/cockroach:v2.0.2"
+  catalog_db:
+    image: "cockroachdb/cockroach:v2.0.2"
+  catalog_cache:
+    image: "redis:4.0.9"
+  order_db:
+    image: "cockroachdb/cockroach:v2.0.2"

go.mod

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+module github.com/tinrab/spidey
+
+require github.com/julienschmidt/httprouter v0.0.0-20180411154501-adbc77eec0d9

order/Dockerfile

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+FROM golang:1.10.2 AS build
+WORKDIR /go/src/app
+COPY . .
+RUN go get -d -v ./...
+RUN env GOOS=linux GARCH=amd64 go install -v -a -tags netgo -installsuffix netgo -ldflags "-linkmode external -extldflags -static"
+
+FROM alpine:3.7
+WORKDIR /usr/bin
+COPY --from=build /go/bin .
+CMD ["app"]