Merge pull request #7 from swade1987/upgrade-image

feat: upgrading alpine and kustomize versions

Author: swade1987

CHANGELOG.md

@@ -1,11 +1,12 @@
-FROM alpine:3.15.4
+FROM alpine:3.21.2
 
 RUN apk update && apk --no-cache add bash curl git
 
 SHELL ["/bin/bash", "-o", "pipefail", "-c"]
 
-RUN curl -sL https://github.com/kubernetes-sigs/kustomize/releases/download/kustomize%2Fv3.8.7/kustomize_v3.8.7_linux_amd64.tar.gz \
-  | tar xz -C /usr/local/bin
+ARG KUSTOMIZE=5.4.3
+RUN curl -sL https://github.com/kubernetes-sigs/kustomize/releases/download/kustomize%2Fv${KUSTOMIZE}/kustomize_v${KUSTOMIZE}_linux_amd64.tar.gz | \
+tar xz && mv kustomize /usr/local/bin/kustomize
 
 RUN rm -rf /var/cache/apk/*