Jenkins/Docker: Update hadolint version.

- Ignore hadolint warnings about not pinned version.

Jenkinsfile

@@ -19,6 +19,7 @@ DOCKERINFO = [
         'label': 'latest'
     ]
 ]
+HADOLINT_VERSION = '2.6.0-alpine'
 
 dockerinfo = DOCKERINFO['production']
 
@@ -135,9 +136,7 @@ pipeline {
                     echo "VERSION: '${VERSION}'"
                 }
 
-                dir('docker') {
-                    stash name: 'dockerfile', includes: '**'
-                }
+                stash name: 'dockerfile', includes: 'docker/**'
             }
         }
 
@@ -206,7 +205,7 @@ echo """Stage schedule:
                             runAsGroup: 1000
                           containers:
                             - name: hadolint
-                              image: mcu--docker.eu-west-1.artifactory.aws.arm.com/hadolint/hadolint:v1.19.0-alpine
+                              image: mcu--docker.eu-west-1.artifactory.aws.arm.com/hadolint/hadolint:${HADOLINT_VERSION}
                               alwaysPullImage: true
                               imagePullPolicy: Always
                               command:
@@ -221,15 +220,13 @@ echo """Stage schedule:
                 }
             }
             steps {
-                dir('docker') {
-                    unstash 'dockerfile'
+                unstash 'dockerfile'
 
-                    sh 'hadolint --format json dockerfile | tee hadolint.log'
+                sh 'hadolint --format json docker/dockerfile* | tee hadolint.log'
 
-                    recordIssues tools: [hadoLint(id: 'hadolint', pattern: 'hadolint.log')],
-                                 qualityGates: [[threshold: 1, type: 'DELTA', unstable: true]],
-                                 referenceJobName: 'nightly', ignoreQualityGate: true
-                }
+                recordIssues tools: [hadoLint(id: 'hadolint', pattern: 'hadolint.log')],
+                             qualityGates: [[threshold: 1, type: 'DELTA', unstable: true]],
+                             referenceJobName: 'nightly', ignoreQualityGate: true
             }
         }
 
@@ -265,9 +262,9 @@ echo """Stage schedule:
             steps {
                 sh('apk add bash curl git')
                 script {
-                    dir('docker') {
-                        unstash 'dockerfile'
+                    unstash 'dockerfile'
 
+                    dir('docker') {
                         dockerinfo = DOCKERINFO['staging']
                         withCredentials([sshUserPrivateKey(credentialsId: 'grasci_with_pk',
                                 keyFileVariable: 'grasciPk',

docker/dockerfile

@@ -10,6 +10,7 @@ RUN useradd -u 1000 -U -m -c Jenkins jenkins
 
 # install packages from official Ubuntu repo
 ENV DEBIAN_FRONTEND=noninteractive
+# hadolint ignore=DL3008
 RUN apt-get update && \
     apt-get install --no-install-recommends -y \
         bc \
@@ -84,6 +85,7 @@ RUN chmod +x /usr/local/bin/PackChk
 
 # install Python requirements
 COPY requirements.txt ${INSTALLER_PATH}/
+# hadolint ignore=DL3013
 RUN python3 -m pip install -U --no-cache-dir pip && \
     python3 -m pip install -U --no-cache-dir -r ${INSTALLER_PATH}/requirements.txt
 

docker/dockerfile.gnu

@@ -6,6 +6,7 @@ FROM ${DOCKER_REGISTRY}/ubuntu:focal
 
 # install packages from official Ubuntu repo
 ENV DEBIAN_FRONTEND=noninteractive
+# hadolint ignore=DL3008
 RUN apt-get update && \
     apt-get install --no-install-recommends -y \
         bc \
@@ -48,6 +49,7 @@ WORKDIR /
 
 # install Python requirements
 COPY requirements.txt ${INSTALLER_PATH}/
+# hadolint ignore=DL3013
 RUN python3 -m pip install -U --no-cache-dir pip && \
     python3 -m pip install -U --no-cache-dir -r ${INSTALLER_PATH}/requirements.txt