Updated Dockerfile fix

Author: aberinnj

cloudbank/terraform/jenkins-module/scripts/Dockerfile

@@ -4,7 +4,7 @@ FROM jenkins/jenkins:lts-jdk11
 USER root
 
 # install sudo and curl and setup apt for https sources as well as kubernetes dependencies
-RUN apt-get update && apt-get install -qq -y sudo apt-transport-https ca-certificates curl
+RUN apt-get update && apt-get install -qq -y sudo ca-certificates curl
 
 
 #install docker
@@ -14,13 +14,13 @@ RUN apt-get update && apt-get install -qq -y docker.io
 RUN apt-get update && apt-get install -qq -y git
 
 # setup repository for kubectl install
-RUN curl -fsSLo /usr/share/keyrings/kubernetes-archive-keyring.gpg https://packages.cloud.google.com/apt/doc/apt-key.gpg && \
-echo "deb [signed-by=/usr/share/keyrings/kubernetes-archive-keyring.gpg] https://apt.kubernetes.io/ kubernetes-xenial main" | sudo tee /etc/apt/sources.list.d/kubernetes.list
+RUN curl -fsSL https://pkgs.k8s.io/core:/stable:/v1.28/deb/Release.key | sudo gpg --dearmor -o /etc/apt/keyrings/kubernetes-apt-keyring.gpg && \
+echo 'deb [signed-by=/etc/apt/keyrings/kubernetes-apt-keyring.gpg] https://pkgs.k8s.io/core:/stable:/v1.28/deb/ /' | sudo tee /etc/apt/sources.list.d/kubernetes.list
 
 # install kubectl
 RUN sudo apt-get update && sudo apt-get install -y kubectl
 
 # install plugins
 RUN jenkins-plugin-cli --plugins blueocean docker-workflow matrix-auth git workflow-aggregator credentials-binding configuration-as-code kubernetes-cli generic-webhook-trigger multibranch-scan-webhook-trigger
 
-USER jenkins
+USER jenkins