Allocate PTY

Change ssh to allocate a PTY so that lxc commands can
read from STDIN over ssh connection.

Change-Id: I4fb74880ca498431679212f40dd60ef3c39a6a00
Signed-off-by: beierlm <mark.beierl@canonical.com>
diff --git a/jenkins/ci-pipelines/ci_stage_3.groovy b/jenkins/ci-pipelines/ci_stage_3.groovy
index f851fc0..18cc6b3 100644
--- a/jenkins/ci-pipelines/ci_stage_3.groovy
+++ b/jenkins/ci-pipelines/ci_stage_3.groovy
@@ -386,10 +386,12 @@
                     remote.identityFile = SSH_KEY
                     remote.allowAnyHosts = true
                     remote.logLevel = 'INFO'
+                    remote.pty = true
 
                     sshCommand remote: remote, command: """
                         wget https://osm-download.etsi.org/ftp/osm-9.0-nine/install_osm.sh
                         chmod +x ./install_osm.sh
+                        sed -i '1 i\\export PATH=/snap/bin:\${PATH}' ~/.bashrc
                     """
 
                     if ( useCharmedInstaller ) {
@@ -400,7 +402,6 @@
                             sudo sed -i "s|https://registry-1.docker.io|http://172.21.1.1:5000|" /var/snap/microk8s/current/args/containerd-template.toml
                             sudo systemctl restart snap.microk8s.daemon-containerd.service
                             sudo snap alias microk8s.kubectl kubectl
-                            echo export PATH=/snap/bin:\${PATH} > ~/.bashrc
                         '''
 
                         withCredentials([[$class: 'UsernamePasswordMultiBinding', credentialsId: 'gitlab-registry',