Automatically print kube context in dapper shell

Use `kube-ps1` to print out the current context inside the dapper shell
(when running `make shell`).

This makes it easy to keep track of the current context and namespace,
and avoid confusion.

Signed-off-by: Mike Kolesnik <[email protected]>

Dockerfile.dapper

@@ -11,6 +11,7 @@ WORKDIR ${DAPPER_SOURCE}
 
 RUN git config --global --add safe.directory ${DAPPER_SOURCE}
 RUN git config --global --add safe.directory ${OVN_DIR}
+RUN echo "source /root/.local/bin/kube-ps1.sh; PS1='[\u@\h \W \$(kube_ps1)]\$ '" >> /root/.bashrc
 
 ENTRYPOINT ["/opt/shipyard/scripts/entry"]
 CMD ["sh"]

package/Dockerfile.shipyard-dapper-base

@@ -24,6 +24,7 @@ ENV HOST_ARCH=${DAPPER_HOST_ARCH} ARCH=${DAPPER_HOST_ARCH} PATH=/go/bin:/root/.l
 # helm               | e2e tests
 # jq                 | JSON processing (GitHub API)
 # kind               | e2e tests
+# kube-ps1           | print out kube context in dapper shell
 # kubectl            | e2e tests (in kubernetes-client)
 # make               | OLM installation
 # moby-engine        | Docker (for Dapper)
@@ -69,6 +70,7 @@ RUN LINT_VERSION=$(awk '/golangci-lint/ { print $2 }' /tools.mod) && \
     BUILDX_VERSION=$(awk '/docker.buildx/ { print $2 }' /tools.mod) && \
     curl -L "https://github.com/docker/buildx/releases/download/${BUILDX_VERSION}/buildx-${BUILDX_VERSION}.linux-${ARCH}" -o /usr/local/libexec/docker/cli-plugins/docker-buildx && \
     chmod 755 /usr/local/libexec/docker/cli-plugins/docker-buildx && \
+    curl -L https://raw.githubusercontent.com/jonmosco/kube-ps1/master/kube-ps1.sh -o /root/.local/bin/kube-ps1.sh && \
     find /go/bin /usr/local/libexec/docker/cli-plugins -type f -executable -newercc /proc -exec strip {} + && \
     find /go/bin /usr/local/libexec/docker/cli-plugins -type f -executable -newercc /proc \( -execdir upx ${UPX_LEVEL} {} \; -o -true \) && \
     go clean -cache -modcache && rm -f /tools.mod