mirror docker/build-push-action@v4

test/Dockerfile

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+# syntax=docker/dockerfile:1
+FROM alpine
+RUN echo "Hello world!"

test/addhost.Dockerfile

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+# syntax=docker/dockerfile:1
+FROM busybox
+RUN cat /etc/hosts

test/cgroup.Dockerfile

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+# syntax=docker/dockerfile:1
+FROM alpine
+RUN cat /proc/self/cgroup

test/go/Dockerfile

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+# syntax=docker/dockerfile:1
+
+FROM golang:alpine AS base
+ENV CGO_ENABLED=0
+RUN apk add --no-cache file git
+WORKDIR /src
+
+FROM base AS build
+RUN --mount=type=bind,target=/src \
+    --mount=type=cache,target=/root/.cache/go-build \
+    go build -ldflags "-s -w" -o /usr/bin/app .
+
+FROM scratch AS binary
+COPY --from=build /usr/bin/app /bin/app
+
+FROM alpine AS image
+COPY --from=build /usr/bin/app /bin/app
+EXPOSE 8080
+ENTRYPOINT ["/bin/app"]

test/go/go.mod

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+module github.com/docker/build-push-action/test/go
+
+go 1.18

test/go/main.go

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+package main
+
+import (
+	"fmt"
+	"log"
+	"net/http"
+)
+
+func main() {
+	http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
+		fmt.Fprintf(w, "Hello, Go!")
+	})
+	log.Fatal(http.ListenAndServe(":8080", nil))
+}

test/multi-sudo.Dockerfile

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+# syntax=docker/dockerfile:1
+FROM --platform=$BUILDPLATFORM golang:alpine AS build
+ARG TARGETPLATFORM
+ARG BUILDPLATFORM
+RUN echo "I am running on $BUILDPLATFORM, building for $TARGETPLATFORM" > /log
+RUN apk --update --no-cache add \
+    shadow \
+    sudo \
+  && addgroup -g 1200 buildx \
+  && adduser -u 1200 -G buildx -s /sbin/nologin -D buildx \
+  && echo 'buildx ALL=(ALL) NOPASSWD:ALL' >> /etc/sudoers \
+  && rm -rf /tmp/* /var/cache/apk/*
+
+USER buildx
+RUN sudo chown buildx. /log
+USER root
+
+FROM alpine
+COPY --from=build /log /log
+RUN ls -al /log

test/multi.Dockerfile

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+# syntax=docker/dockerfile:1
+FROM --platform=$BUILDPLATFORM golang:alpine AS build
+
+ARG TARGETPLATFORM
+ARG BUILDPLATFORM
+RUN echo "I am running on $BUILDPLATFORM, building for $TARGETPLATFORM" > /log
+
+FROM alpine
+COPY --from=build /log /log

test/named-context-base.Dockerfile

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+# syntax=docker/dockerfile:1
+
+FROM debian
+RUN echo "Hello debian!"

test/named-context.Dockerfile

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+# syntax=docker/dockerfile:1
+
+FROM alpine
+RUN cat /etc/*release

test/nocachefilter.Dockerfile

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+# syntax=docker/dockerfile:1
+FROM busybox AS base
+RUN echo "Hello world!" > /hello
+
+FROM alpine AS build
+COPY --from=base /hello /hello
+RUN uname -a
+
+FROM build

test/proxy.Dockerfile

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+# syntax=docker/dockerfile:1
+FROM alpine
+RUN apk add --no-cache curl net-tools
+ARG HTTP_PROXY
+ARG HTTPS_PROXY
+RUN printenv HTTP_PROXY
+RUN printenv HTTPS_PROXY
+RUN netstat -aptn
+RUN curl --retry 5 --retry-all-errors --retry-delay 0 --connect-timeout 5 --proxy $HTTP_PROXY -v --insecure --head https://www.google.com

test/secret.Dockerfile

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+# syntax=docker/dockerfile:1
+FROM busybox
+RUN --mount=type=secret,id=MYSECRET \
+  echo "MYSECRET=$(cat /run/secrets/MYSECRET)"

test/shmsize.Dockerfile

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+# syntax=docker/dockerfile:1
+FROM busybox
+RUN mount | grep /dev/shm

test/ulimit.Dockerfile

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+# syntax=docker/dockerfile:1
+FROM busybox
+RUN ulimit -a