Install kubelogin in CL2 image (#41)

Author: alyssa1303

clusterloader2/Dockerfile

@@ -7,10 +7,18 @@ RUN go build -o clusterloader2 ./cmd/
 
 FROM ubuntu:22.04
 RUN apt-get update && apt-get install -y curl unzip
+
+# Install AWS CLI
 RUN curl "https://awscli.amazonaws.com/awscli-exe-linux-x86_64.zip" -o "awscliv2.zip" \
     && unzip awscliv2.zip \
     && ./aws/install \
     && rm -rf awscliv2.zip aws
+
+# Install Azure CLI & kubelogin
+RUN curl -sL https://aka.ms/InstallAzureCLIDeb | bash
+RUN az aks install-cli
+
+# Install clusterloader2
 COPY --from=builder /root/perf-tests /root/perf-tests
 RUN mkdir $GOPATH/src/k8s.io -p && \
     cp /root/perf-tests $GOPATH/src/k8s.io/perf-tests -r