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@@ -1,3 +1,47 @@
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+# setup build arguments for version of dependencies to use
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+ARG DOCKER_GEN_VERSION=0.7.4
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+ARG FOREGO_VERSION=0.16.1
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+
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+# Use a specific version of golang to build both binaries
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+FROM golang:1.15.10-alpine as gobuilder
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+RUN apk add --no-cache git
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+
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+# Build docker-gen from scratch
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+FROM gobuilder as dockergen
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+
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+# Download the sources for the given version
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+ARG DOCKER_GEN_VERSION
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+ADD https://github.com/jwilder/docker-gen/archive/${DOCKER_GEN_VERSION}.tar.gz sources.tar.gz
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+
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+# Move the sources into the right directory
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+RUN tar -xzf sources.tar.gz && \
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+ mkdir -p /go/src/github.com/jwilder/ && \
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+ mv docker-gen-* /go/src/github.com/jwilder/docker-gen
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+
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+# Install the dependencies and make the docker-gen executable
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+WORKDIR /go/src/github.com/jwilder/docker-gen
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+RUN go get -v ./... && \
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+ CGO_ENABLED=0 GOOS=linux go build -ldflags "-X main.buildVersion=${DOCKER_GEN_VERSION}" ./cmd/docker-gen
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+
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+# Build forego from scratch
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+# Because this relies on golang workspaces, we need to use go < 1.8.
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+FROM gobuilder as forego
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+
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+# Download the sources for the given version
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+ARG FOREGO_VERSION
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+ADD https://github.com/jwilder/forego/archive/v${FOREGO_VERSION}.tar.gz sources.tar.gz
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+
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+# Move the sources into the right directory
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+RUN tar -xzf sources.tar.gz && \
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+ mkdir -p /go/src/github.com/ddollar/ && \
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+ mv forego-* /go/src/github.com/ddollar/forego
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+
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+# Install the dependencies and make the forego executable
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+WORKDIR /go/src/github.com/ddollar/forego/
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+RUN go get -v ./... && \
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+ CGO_ENABLED=0 GOOS=linux go build -o forego .
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+
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+# Build the final image
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FROM nginx:1.19.3-alpine
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FROM nginx:1.19.3-alpine
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LABEL maintainer="Jason Wilder mail@jasonwilder.com"
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LABEL maintainer="Jason Wilder mail@jasonwilder.com"
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@@ -11,15 +55,14 @@ RUN apk add --no-cache --virtual .run-deps \
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RUN echo "daemon off;" >> /etc/nginx/nginx.conf \
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RUN echo "daemon off;" >> /etc/nginx/nginx.conf \
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&& sed -i 's/worker_processes 1/worker_processes auto/' /etc/nginx/nginx.conf
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&& sed -i 's/worker_processes 1/worker_processes auto/' /etc/nginx/nginx.conf
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-# Install Forego
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-ADD https://github.com/jwilder/forego/releases/download/v0.16.1/forego /usr/local/bin/forego
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-RUN chmod u+x /usr/local/bin/forego
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-
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-ENV DOCKER_GEN_VERSION 0.7.4
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+# Install Forego + docker-gen
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+COPY --from=forego /go/src/github.com/ddollar/forego/forego /usr/local/bin/forego
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+COPY --from=dockergen /go/src/github.com/jwilder/docker-gen/docker-gen /usr/local/bin/docker-gen
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-RUN wget --quiet https://github.com/jwilder/docker-gen/releases/download/$DOCKER_GEN_VERSION/docker-gen-alpine-linux-amd64-$DOCKER_GEN_VERSION.tar.gz \
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- && tar -C /usr/local/bin -xvzf docker-gen-alpine-linux-amd64-$DOCKER_GEN_VERSION.tar.gz \
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- && rm /docker-gen-alpine-linux-amd64-$DOCKER_GEN_VERSION.tar.gz
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+# Add DOCKER_GEN_VERSION environment variable
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+# Because some external projects rely on it
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+ARG DOCKER_GEN_VERSION
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+ENV DOCKER_GEN_VERSION=${DOCKER_GEN_VERSION}
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COPY network_internal.conf /etc/nginx/
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COPY network_internal.conf /etc/nginx/
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