some example

steps {

            // container(name: 'kaniko', shell: '/busybox/sh') {

            container('kaniko') {
                
                // def TOK="aaaaaaa"
                // sh "echo $TOK"
                
                sh '''
                
                    DIR=\"$(pwd)/repo\"
                    
                    echo $DIR
                    
                    ls -l 
                    
                    cd repo && ls -l .
                    
                    DOCFILE=Dockerfile
                    
                    cat $DOCFILE
                
                    
                    CI_REGISTRY=\"registry.local.homelabsolutions.net/afsas/fips-spring-java\"
                
                    CI_REGISTRY_BASE64_TOKEN=\"========\"
                    
                    echo '{"auths": { "registry.local.homelabsolutions.net": { "auth": "Z2l0bGFiX3VzZXI6TjFramVOVV9OZllidkNzY3FfdVE=" }}}' >/kaniko/.docker/config.json
                    
                    cat /kaniko/.docker/config.json
                    
                    /kaniko/executor -f \"$DOCFILE\" -c . --insecure --skip-tls-verify --cache=true --destination=\"$CI_REGISTRY\"
                    
                '''

            }