docker-containers: change sakuli runtime to usermode, to support openshift

[toschneck]

Since ConSol/docker-headless-vnc-container#3 is closed we can no change the sakuli implementation to support openshift

[rbo]

feature/#218_docker_usermod_openshift - sakuli-ubuntu-xfce works with disabled chmod -R a+rw $2. I think we should set a umask and don't run chmod. @toschneck what do you think?

[rbo]

Added umask and remove chmod. Leeks very well:

     2252      4 drwxrwxr-x   5 root     root         4096 Nov  7 16:07 /sakuli/example_test_suites/example_xfce/
     4171      4 drwxrwxrwx   4 1984     root         4096 Nov  7 16:07 /sakuli/example_test_suites/example_xfce/_logs
     4183      4 drwxrwxrwx   2 1984     root         4096 Nov  7 16:07 /sakuli/example_test_suites/example_xfce/_logs/playback
     4543      4 -rw-rw-rw-   1 1984     root         2707 Nov  7 16:07 /sakuli/example_test_suites/example_xfce/_logs/index.htm
     4538      8 -rw-rw-rw-   1 1984     root         4586 Nov  7 16:07 /sakuli/example_test_suites/example_xfce/_logs/sakuli_demo__07Nov2016__16_07_08.htm
     4174     12 -rw-rw-rw-   1 1984     root         9162 Nov  7 16:07 /sakuli/example_test_suites/example_xfce/_logs/_sakuli.log
     4172      4 drwxrwxrwx   2 1984     root         4096 Nov  7 16:07 /sakuli/example_test_suites/example_xfce/_logs/_screenshots

[rbo]

"works"

ERROR [2016-11-07 16:50:08.427] - Exception in thread "main" java.lang.NoClassDefFoundError: Could not initialize class org.sikuli.script.App

[rbo]

It looks like the base image consol/ubuntu-xfce-vnc:dev is the problem:
Tested with minor adjustments:

diff --git a/docker/sakuli-ubuntu-xfce/Dockerfile b/docker/sakuli-ubuntu-xfce/Dockerfile
index 14ccd61..9e0f774 100644
--- a/docker/sakuli-ubuntu-xfce/Dockerfile
+++ b/docker/sakuli-ubuntu-xfce/Dockerfile
@@ -1,6 +1,7 @@
 # This Dockerfile is used to build an sakuli image based on Ubuntu

-FROM consol/ubuntu-xfce-vnc:1.0.2
+FROM consol/ubuntu-xfce-vnc:dev
+USER 0
 MAINTAINER Tobias Schneck "[email protected]"
 ENV REFRESHED_AT 2016-11-02

diff --git a/docker/sakuli-ubuntu-xfce/scripts/sakuli_startup.sh b/docker/sakuli-ubuntu-xfce/scripts/sakuli_startup.sh
index 40c4766..7d3f3ae 100644
--- a/docker/sakuli-ubuntu-xfce/scripts/sakuli_startup.sh
+++ b/docker/sakuli-ubuntu-xfce/scripts/sakuli_startup.sh
@@ -1,6 +1,6 @@
 #!/bin/bash

-/root/scripts/vnc_startup.sh
+/headless/scripts/vnc_startup.sh

 # modify $SAKULI_TEST_SUITE permissions to ensure, that volume-mounted log files can be deleted afterwards
 modify_testsuite_permissions(){
@@ -33,4 +33,4 @@ if [ "${1:0:1}" == "-" ] || [ "${1:0:3}" == "run" ] || [ "${1:0:7}" == "encrypt"
         exit $res
 else
         exec $1
-fi
\ No newline at end of file
+fi

Errro

        ======== test case "case1" ended with ERRORS =================
        test case id: case1
        name: case1
        RESULT STATE: ERRORS
        result code: 4
        ERRORS:Unexpected error during creating an instance of class 'org.sakuli.actions.environment.Application'
                        Suppressed EXCEPTION: null
        db primary key: -1
        duration: -1.0 sec.
        warning time: 40 sec.
        critical time: 60 sec.
        start URL: http://sahi.example.com/_s_/dyn/Driver_initialized
        last URL: null
===========  SAKULI Testsuite "example_xfce" execution FINISHED - ERRORS ======================

ERROR [2016-11-07 17:04:17.119] - ERROR:
CASE "case1": Unexpected error during creating an instance of class 'org.sakuli.actions.environment.Application'
                Suppressed EXCEPTION: null

SAKULI_RETURN_VAL: 6

Update: Centos works very well with the same small adjustments.

[toschneck]

@rbo so far as remember chmod i only have added, if you mount a testsuite into the container, that the log and erros files won't get inaccessible. So i think we don't need it anymore if we start the container as normal user. Do you know who other images handle the file permissions of mounted volumes as non-root container?

[rbo]

Do you know who other images handle the file permissions of mounted volumes as non-root container?

I think I've read something with chmod 777 and NFS....

[rbo]

sakuli-centos-xfce, works very well:

...
===========  SAKULI Testsuite "example_xfce" execution FINISHED - OK ======================

SAKULI_RETURN_VAL: 0

[rbo]

Problem with sakuli-ubuntu-xfce image: https://gist.github.com/rbo/e356c375d2ac615512487f8f28f41212

[toschneck]

also add some correct heap sizing due to this fact: http://matthewkwilliams.com/index.php/2016/03/17/docker-cgroups-memory-constraints-and-java-cautionary-tale/

Solution: script from PR docker-library/openjdk#71