update dokcerfile to fetch the correct binaries for the arch and upda…

…te base image

Signed-off-by: Carlos Panato <[email protected]>

Dockerfile

@@ -1,4 +1,4 @@
-FROM alpine:3.14
+FROM alpine:3.15
 
 RUN apk --no-cache add \
     bash \
@@ -21,21 +21,28 @@ ARG yamale_version=4.0.0
 LABEL yamale_version=$yamale_version
 RUN pip install "yamale==$yamale_version"
 
+ARG TARGETPLATFORM
 # Install kubectl
-ARG kubectl_version=v1.21.5
+ARG kubectl_version=v1.22.5
 LABEL kubectl_version=$kubectl_version
-RUN curl -LO "https://storage.googleapis.com/kubernetes-release/release/$kubectl_version/bin/linux/amd64/kubectl" && \
+RUN curl -LO "https://storage.googleapis.com/kubernetes-release/release/$kubectl_version/bin/$TARGETPLATFORM/kubectl" && \
     chmod +x kubectl && \
     mv kubectl /usr/local/bin/
 
 # Install Helm
 ARG helm_version=v3.7.2
 LABEL helm_version=$helm_version
-RUN curl -LO "https://get.helm.sh/helm-$helm_version-linux-amd64.tar.gz" && \
-    mkdir -p "/usr/local/helm-$helm_version" && \
-    tar -xzf "helm-$helm_version-linux-amd64.tar.gz" -C "/usr/local/helm-$helm_version" && \
-    ln -s "/usr/local/helm-$helm_version/linux-amd64/helm" /usr/local/bin/helm && \
-    rm -f "helm-$helm_version-linux-amd64.tar.gz"
+RUN targetArch=$(echo $TARGETPLATFORM | cut -f2 -d '/') \
+    && if [ ${targetArch} = "amd64" ]; then \
+    HELM_ARCH="linux-amd64"; \
+elif [ ${targetArch} = "arm64" ]; then \
+    HELM_ARCH="linux-arm64"; \
+fi \
+    && curl -LO "https://get.helm.sh/helm-$helm_version-$HELM_ARCH.tar.gz" \
+    && mkdir -p "/usr/local/helm-$helm_version" \
+    && tar -xzf "helm-$helm_version-$HELM_ARCH.tar.gz" -C "/usr/local/helm-$helm_version" \
+    && ln -s "/usr/local/helm-$helm_version/$HELM_ARCH/helm" /usr/local/bin/helm \
+    && rm -f "helm-$helm_version-$HELM_ARCH.tar.gz"
 
 COPY ./etc/chart_schema.yaml /etc/ct/chart_schema.yaml
 COPY ./etc/lintconf.yaml /etc/ct/lintconf.yaml