Snap promotion fix

Changes snapcraft to run directly on host instead of in docker
continer.  This adds the requirement to have snapcraft installed
in the Jenkins agent, but is more reliable as the snapcraft docker
image is not the best practice anymore for building snaps.

Change-Id: I3c26773a4989551da92a0015749717fe2d622b22
Signed-off-by: beierlm <mark.beierl@canonical.com>

jenkins/ci-pipelines/ci_stage_3.groovy

@@ -518,8 +518,9 @@ EOF"""
 
                         stage("Snap promotion") {
                             def snaps = ["osmclient"]
+                            sh "snapcraft login --with ~/.snapcraft/config"
                             for (snap in snaps) {
-                                channel=""
+                                channel="latest/"
                                 if (BRANCH_NAME.startsWith("v")) {
                                     channel=BRANCH_NAME.substring(1)+"/"
                                 } else if (BRANCH_NAME!="master") {
@@ -527,26 +528,19 @@ EOF"""
                                 }
                                 track=channel+"edge\\*"
                                 edge_rev=sh(returnStdout: true,
-                                    script: "sudo docker run -v ~/.snapcraft:/snapcraft -v ${WORKSPACE}:/build " +
-                                    "-w /build snapcore/snapcraft:stable /bin/bash -c " +
-                                    "\"snapcraft login --with /snapcraft/config &>/dev/null && " +
-                                    "snapcraft revisions $snap\" | " +
+                                    script: "snapcraft revisions $snap | " +
                                     "grep \"$track\" | tail -1 | awk '{print \$1}'").trim()
+                                print "edge rev is $edge_rev"
                                 track=channel+"beta\\*"
                                 beta_rev=sh(returnStdout: true,
-                                    script: "sudo docker run -v ~/.snapcraft:/snapcraft -v ${WORKSPACE}:/build " +
-                                    "-w /build snapcore/snapcraft:stable /bin/bash -c " +
-                                    "\"snapcraft login --with /snapcraft/config &>/dev/null && " +
-                                    "snapcraft revisions $snap\" | " +
+                                    script: "snapcraft revisions $snap | " +
                                     "grep \"$track\" | tail -1 | awk '{print \$1}'").trim()
+                                print "beta rev is $beta_rev"
 
                                 if ( edge_rev != beta_rev ) {
                                     print "Promoting $edge_rev to beta in place of $beta_rev"
                                     beta_track=channel+"beta"
-                                    sh("sudo docker run -v ~/.snapcraft:/snapcraft -v ${WORKSPACE}:/build " +
-                                        "-w /build snapcore/snapcraft:stable /bin/bash -c " +
-                                        "\"snapcraft login --with /snapcraft/config &>/dev/null && " +
-                                        "snapcraft release $snap $edge_rev $beta_track\"")
+                                    sh "snapcraft release $snap $edge_rev $beta_track"
                                 }
                             }
                         }