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Dockerfile.loadtester
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Dockerfile.loadtester
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FROM golang:1.23-alpine as builder
ARG TARGETPLATFORM
ARG TARGETARCH
ARG REVISION
RUN apk --no-cache add alpine-sdk perl curl bash tar
RUN HELM3_VERSION=3.15.3 && \
curl -sSL "https://get.helm.sh/helm-v${HELM3_VERSION}-linux-${TARGETARCH}.tar.gz" | tar xvz && \
chmod +x linux-${TARGETARCH}/helm && mv linux-${TARGETARCH}/helm /usr/local/bin/helm
RUN KUBECTL_VERSION=v1.29.7 && \
curl -LO "https://dl.k8s.io/release/${KUBECTL_VERSION}/bin/linux/${TARGETARCH}/kubectl" && \
chmod +x kubectl && mv kubectl /usr/local/bin/kubectl
RUN GRPC_HEALTH_PROBE_VERSION=v0.4.28 && \
wget -qO /usr/local/bin/grpc_health_probe https://github.com/grpc-ecosystem/grpc-health-probe/releases/download/${GRPC_HEALTH_PROBE_VERSION}/grpc_health_probe-linux-${TARGETARCH} && \
chmod +x /usr/local/bin/grpc_health_probe
RUN GHZ_VERSION=0.120.0 && \
curl -sSL "https://github.com/bojand/ghz/archive/refs/tags/v${GHZ_VERSION}.tar.gz" | tar xz -C /tmp && \
cd /tmp/ghz-${GHZ_VERSION}/cmd/ghz && GOARCH=$TARGETARCH go build . && mv ghz /usr/local/bin && \
chmod +x /usr/local/bin/ghz
WORKDIR /workspace
# copy modules manifests
COPY go.mod go.mod
COPY go.sum go.sum
# cache modules
RUN go mod download
# copy source code
COPY cmd/ cmd/
COPY pkg/ pkg/
# build
RUN CGO_ENABLED=0 go build -o loadtester ./cmd/loadtester/*
FROM bash:5.0
ARG TARGETPLATFORM
RUN addgroup -S app && \
adduser -S -g app app && \
apk --no-cache add ca-certificates curl jq libgcc wrk hey git
WORKDIR /home/app
COPY --from=bats/bats:v1.1.0 /opt/bats/ /opt/bats/
RUN ln -s /opt/bats/bin/bats /usr/local/bin/
COPY --from=builder /usr/local/bin/helm /usr/local/bin/
COPY --from=builder /usr/local/bin/ghz /usr/local/bin/
COPY --from=builder /usr/local/bin/grpc_health_probe /usr/local/bin/
COPY --from=builder /usr/local/bin/kubectl /usr/local/bin/
ADD https://raw.githubusercontent.com/grpc/grpc-proto/master/grpc/health/v1/health.proto /tmp/ghz/health.proto
RUN chown -R app:app ./
RUN chown -R app:app /tmp/ghz
USER app
# test load generator tools
RUN hey -n 1 -c 1 https://flagger.app > /dev/null && echo $? | grep 0
RUN wrk -d 1s -c 1 -t 1 https://flagger.app > /dev/null && echo $? | grep 0
COPY --from=builder --chown=app:app /workspace/loadtester .
ENTRYPOINT ["./loadtester"]