Dockerfile.e2e: fix DOCKER_GITCOMMIT handling

1. There is no need to persist DOCKER_GITCOMMIT,
as it's not needed for runtime, only for build.
So, remove ENV.

2. In case $GITCOMMIT is not defined during build time
(and it happens if .git directory is not present),
we still need to have some value set, so set it to
`undefined`. Otherwise we'll have something like

>  => ERROR [builder 2/3] RUN hack/make.sh build-integration-test-binary
> ------
>  > [builder 2/3] RUN hack/make.sh build-integration-test-binary:
> #32 0.488
> #32 0.505 error: .git directory missing and DOCKER_GITCOMMIT not specified
> #32 0.505   Please either build with the .git directory accessible, or specify the
> #32 0.505   exact (--short) commit hash you are building using DOCKER_GITCOMMIT for
> #32 0.505   future accountability in diagnosing build issues.  Thanks!

Signed-off-by: Kir Kolyshkin <kolyshkin@gmail.com>
(cherry picked from commit c3b24944ca)
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
This commit is contained in:
Kir Kolyshkin 2019-04-30 00:22:22 -07:00 committed by Sebastiaan van Stijn
parent 2e95499142
commit 14bb71d508
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@ -40,12 +40,11 @@ RUN CGO_ENABLED=0 go build -buildmode=pie -o /build/httpserver/httpserver github
FROM base AS builder
# Set tag and add sources
ARG DOCKER_GITCOMMIT
ENV DOCKER_GITCOMMIT=${DOCKER_GITCOMMIT:-undefined}
COPY . .
# Copy test sources tests that use assert can print errors
RUN mkdir -p /build${PWD} && find integration integration-cli -name \*_test.go -exec cp --parents '{}' /build${PWD} \;
# Build and install test binaries
ARG DOCKER_GITCOMMIT=undefined
RUN hack/make.sh build-integration-test-binary
RUN mkdir -p /build/tests && find . -name test.main -exec cp --parents '{}' /build/tests \;