This commit simplifies and consolidates the two different
implementations of terminals used in tests. There is now a single
MockTerminal which captures output, and allows accessing as one large
string (with unix style \n as newlines), as well as configuring
input.
The big win here is catching tests that are incorrectly named and will
be skipped by gradle, providing a false sense of security.
The whole thing takes about 10 seconds on my Macbook Air, not counting
compiling the test classes, which seems worth it. Because this runs as
a gradle task with propery UP-TO-DATE handling it can be skipped if the
tests haven't been changed which should save some time.
I chose to keep this in test:framework rather than a new subproject of
buildSrc because ESIntegTestCase and doesn't inroduce any additional
dependencies.
DiscoveryService was a bridge into the discovery universe. This is unneeded and we can just access discovery directly or do things in a different way.
One of those different ways, is not having a dedicated discovery implementation for each our dicovery plugins but rather reuse ZenDiscovery.
UnicastHostProviders are now classified by discovery type, removing unneeded checks on plugins.
Closes#16821
Today we might start a node and some of the paths might not have the
required permissions. This commit goes through all data directories as
well as index, shard and state directories and ensures we have write access.
To make this work across all OS etc. we are trying to write a real file
and remove it again in each of those directories
All we do is check the cancelled flag and stop the request at a few key
points.
Adds the cancellation cause to the status so any request that is cancelled
but doesn't die can be seen in the task list.
One of our tests leaked a system property here since we failed after appling some
system properties in BootstrapCLIParser. This is not a huge deal in production since
we exit the JVM if we fail on that. Yet for correctnes we should only apply them if
we manage to parse them all.
This also caused a test failure lately on CI but on an unrelated test:
https://elasticsearch-ci.elastic.co/job/elastic+elasticsearch+master+periodic/314/console
This processor is useful when all elements of a json array need to be processed in the same way.
This avoids that a processor needs to be defined for each element in an array.
Also it is very likely that it is unknown how many elements are inside an json array.
Renamed `ingest-with-mustache` to `smoke-test-ingest-with-all-dependencies`
Also renamed `ingest-disabled` to `smoke-test-ingest-disabled` so that the name is more inline with other qa smoke test modules.
Identifying when a plugin id is maven coordinates is currently done by
checking if the plugin id contains 2 colons. However, a valid url could
have 2 colons, for example when a port is specified. This change adds
another check, ensuring the plugin id with maven coordinates does not
contain a slash, which only a url would have.
closes#16376
This commit enableds strict settings validation on node startup. All settings
passed to elasticsearch either through system properties, yaml files or any other
way to pass settings must be registered and valid. Settings that are unknown ie. due to
typos or due to deprecation or removal will cause the node to NOT start up. Plugins
have to declare all their settings on the `SettingsModule#registerSetting` and settings for
plugins that are not installed must be removed.
This commit also removes the ability to specify the nodes name via `-Des.name` or just `name` in the
configuration files. The node name must be prefixed with the node prexif like `node.name: Boom`. Left over
usage of `name` will also cause startup to fail.
Cli tools currently catch all exceptions, and only print the exception
message, except when a special system property is set. Even with this
flag set, certain exceptions, like IOException, are captured and their
stack trace is always lost.
This change adds a UserError class, which can be used a cli tools to
specify a message to the user, as well as an exit status. All other
exceptions are propagated out of main, so java will exit with non-zero
and print the stack trace.
The plugin cli currently is extremely lenient, allowing most errors to
simply be logged. This can lead to either corrupt installations (eg
partially installed plugins), or confused users.
This change rewrites the plugin cli to have almost no leniency.
Unfortunately it was not possible to remove all leniency, due in
particular to how config files are handled.
The following functionality was simplified:
* The format of the name argument to install a plugin is now an official
plugin name, maven coordinates, or a URL.
* Checksum files are required, and only checked, for official plugins
and maven plugins. Checksums are also only SHA1.
* Downloading no longer uses a separate thread, and no longer has a timeout.
* Installation, and removal, attempts to be atomic. This only truly works
when no config or bin files exist.
* config and bin directories are verified before copying is attempted.
* Permissions and user/group are no longer set on config and bin files.
We rely on the users umask.
* config and bin directories must only contain files, no subdirectories.
* The code is reorganized so each command is a separate class. These
classes already existed, but were embedded in the plugin cli class, as
an extra layer between the cli code and the code running for each command.
If we don't do this, and some path.conf is set when starting the tribe node, that path.conf will be ignored and the inner tribe clients will try to read elsewhere, where they most likely don't have permissions to read from.
Closes#16253Closes#16258
This commit converts the script mode settings to the new settings
infrastructure. This is a major refactoring of the handling of script
mode settings. This refactoring is necessary because these settings are
determined at runtime based on the registered script engines and the
registered script contexts.
The rest test framework, because it used to be tightly integrated with
ESIntegTestCase, currently expects the addresses for the test cluster to
be passed using the transport protocol port. However, it only uses this
to then find the http address.
This change makes ESRestTestCase extend from ESTestCase instead of
ESIntegTestCase, and changes the sysprop used to tests.rest.cluster,
which now takes the http address.
closes#15459
Site plugins used to be used for things like kibana and marvel, but
there is no longer a need since kibana (and marvel as a kibana plugin)
uses node.js. This change removes site plugins, as well as the flag for
jvm plugins. Now all plugins are jvm plugins.
This creates an reindex plugin with a very basic implementation that is
very like delete-by-query. New we'll integrate it with the task managament
work but for now this works.
Rather than failing the request, when a node with node.ingest set to false receives an index or bulk request with a pipeline id, it should try to redirect the request to another node with node.ingest set to true. If there are no node with ingest set to true based on the current cluster state, an exception will be returned and the request will fail. Note that in case there are no ingest nodes and bulk has a pipeline id specified only for a subset of index requests, the whole bulk will fail.
Now that the ingest infra is part of es core we can remove some code that was required by the plugin and have a better integration with es core. We allow to specify the pipeline id in bulk and index as a request parameter, we have a REST filter that parses it and adds it to the relevant action request. That is not required anymore, as we can add this logic to RestIndexAction and RestBulkAction directly, no need for a filter. Also, we can allow to specify a pipeline id for each index requests in a bulk request. The small downside of this is that the ingest filter has to go over each item of a bulk request, all the time, to figure out whether they have a pipeline id.
CRUD and simulate apis work now fine, every node has the pipelines in memory, but node.ingest disables ingestion, meaning that any index or bulk request with a pipeline id is going to fail
We will keep this abstractions as it's convenient, otherwise IngestDocument would depend on ScriptService directly, and would explicitly rely on mustache which is not even part of core. better to have the interface in core, and the impl as part of the ingest plugin, which relies on mustache, shipped with core by default.
The append processor allows to append one or more values to an existing list; add a new list with the provided values if the field doesn't exist yet, or convert an existing scalar into a list and add the provided values to the newly created list.
This required adapting of IngestDocument#appendFieldValue behaviour, also added support for templating to it.
Closes#14324
This change adds a Fixture class for use by gradle. A Fixture is an
external process that integration tests will use. It can be added as a
dependsOn for integTest, and will automatically be shutdown upon success
or failure, as well as relevant information dumped on failure. There is
also an example fixture in this change.
Added ingest wide template infrastructure to IngestDocument
Added a TemplateService interface that the ingest framework uses
Added a TemplateService implementation that the ingest plugin provides that delegates to the ES' script service
Cut SetProcessor over to use the template infrastructure for the `field` and `value` settings.
Removed the MetaDataProcessor
Removed dependency on mustache library
Added qa ingest mustache rest test so that the ingest and mustache integration can be tested.
This fixes the `lenient` parameter to be `missingClasses`. I will remove this boolean and we can handle them via the normal whitelist.
It also adds a check for sheisty classes (jar hell with the jdk).
This is inspired by the lucene "sheisty" classes check, but it has false positives. This check is more evil, it validates every class file against the extension classloader as a resource, to see if it exists there. If so: jar hell.
This jar hell is a problem for several reasons:
1. causes insanely-hard-to-debug problems (like bugs in forbidden-apis)
2. hides problems (like internal api access)
3. the code you think is executing, is not really executing
4. security permissions are not what you think they are
5. brings in unnecessary dependencies
6. its jar hell
The more difficult problems are stuff like jython, where these classes are simply 'uberjared' directly in, so you cant just fix them by removing a bogus dependency. And there is a legit reason for them to do that, they want to support java 1.4.
This change removes hardcoded ports from cluster formation. It passes
port 0 for http and transport, and then uses a special property to have
the node log the ports used for http and transport (just for tests).
This does not yet work for multi node tests. This brings us one step
closer to working with --parallel.
This commit removes and now forbids all uses of
Collections#shuffle(List) and Random#<init>() across the codebase. The
rationale for removing and forbidding these methods is to increase test
reproducibility. As these methods use non-reproducible seeds, production
code and tests that rely on these methods contribute to
non-reproducbility of tests.
Instead of Collections#shuffle(List) the method
Collections#shuffle(List, Random) can be used. All that is required then
is a reproducible source of randomness. Consequently, the utility class
Randomness has been added to assist in creating reproducible sources of
randomness.
Instead of Random#<init>(), Random#<init>(long) with a reproducible seed
or the aforementioned Randomess class can be used.
Closes#15287
The NodeBuilder is currently used to construct a Node. However, this is
really just yet-another-builder that wraps around a Settings.Builder
witha couple convenience methods. But there are very few uses of these
convenience methods. This change removes NodeBuilder, in favor of just
using the Node constructor.
The tribe node creates one local client node for each cluster it
connects to. Refactorings in #13383 broke this so that each local client
node now tries to load the full elasticsearch.yml that the real tribe
node uses.
This change fixes the problem by adding a TribeClientNode which is a
subclass of Node. The Environment the node uses is now passed in (in
place of Settings), and the TribeClientNode simply does not use
InternalSettingsPreparer.prepareEnvironment.
The tests around tribe nodes are not great. The existing tests pass, but
I also manually tested by creating 2 local clusters, and configuring and
starting a tribe node. With this I was able to see in the logs the tribe
node connecting to each cluster.
closes#13383
We currently use the full suite of packaged rest tests for each
distribution. We also used to run rest tests within core integ tests,
but this stopped working when we split out the test-framework, since the
test files are in there.
This change simplifies the code to run packaged rest tests just once,
for the integ-test-zip, and removes the unused rest tests from
test-framework. Distributions rest tests now check that all modules
were loaded.
The current mechanism for adding plugins to the integTest cluster is to
have a FileCollection. This works well for the integTests for a single
plugin, which automatically adds itself to be installed. However, for qa
tests where many plugins may be installed, and from other projects, it
is cumbersome to add configurations, dependencies and dependsOn
statements over and over. This simplifies installing a plugin from
another project by moving this common setup into the cluster
configuration code.
This change adds back the multi node smoke test, as well as making the
cluster formation for any test allow multiple nodes. The main changes in
cluster formation are abstracting out the node specific configuration to
a helper struct, as well as making a single wait task that waits for all
nodes after their start tasks have run. The output on failure was also
improved to log which node's info is being printed.
Currently we use the "gradle project attachment plugin" to support
building elasticsearch as part of another project. However, this plugin
has a number of issues, a large part of which is requiring consistent
use of the projectsPrefix.
This change removes projectsPrefix, and adds support for a special
extra-plugins directory in the root of elasticsearch. Any projects
checked out within this directory will be automatically added to
elasticsearch.
* Forbid System.setProperties & co in forbidden APIs.
* Ban property write access at runtime with security manager.
Plugins that need to modify system properties will need to request permission in their plugin-security.policy
closes#14726
Squashed commit of the following:
commit 5b591e98570e3fa481b2816a44063b98bff36ddf
Author: Robert Muir <rmuir@apache.org>
Date: Fri Nov 13 00:54:08 2015 -0500
add assumption for self-signing in PluginManagerTests
commit ed11e5371b6f71591dc41c6f60d033502cfcf029
Author: Robert Muir <rmuir@apache.org>
Date: Fri Nov 13 00:20:59 2015 -0500
show error output from integ test startup
commit d8b187a10e95d89a0e775333dcbe1aaa903fb376
Author: Robert Muir <rmuir@apache.org>
Date: Thu Nov 12 22:14:11 2015 -0500
fix gradle check under jigsaw
Just suck in the system policy, so its compatible with any version of java.
It means it also respects configuration (e.g. for monitoring agents)
Closes#14704
Many other improvements:
* Use spaces in ES path
* Use space in path for plugin file installation
* Use a different cwd than ES home
* Use jps to ensure process being stopped is actually elasticsearch
* Stop ES if pid file already exists
* Delete pid file when successfully killed
Also, refactored the cluster formation code to be a little more organized.
closes#14464
This gets the tar and tar_plugins tests working in gradle. It does so by
adding a subproject, qa/vagrant, which adds the following tasks:
Verification
------------
checkPackages - Check the packages against a representative sample of the
linux distributions we have in our Vagrantfile
checkPackagesAllDistros - Check the packages against all the linux
distributions we have in our Vagrantfile
Package Verification
--------------------
checkCentos6 - Run packaging tests against centos-6
checkCentos7 - Run packaging tests against centos-7
checkDebian8 - Run packaging tests against debian-8
checkFedora22 - Run packaging tests against fedora-22
checkOel7 - Run packaging tests against oel-7
checkOpensuse13 - Run packaging tests against opensuse-13
checkSles12 - Run packaging tests against sles-12
checkUbuntu1204 - Run packaging tests against ubuntu-1204
checkUbuntu1404 - Run packaging tests against ubuntu-1404
checkUbuntu1504 - Run packaging tests against ubuntu-1504
Vagrant
-------
smokeTestCentos6 - Smoke test the centos-6 VM
smokeTestCentos7 - Smoke test the centos-7 VM
smokeTestDebian8 - Smoke test the debian-8 VM
smokeTestFedora22 - Smoke test the fedora-22 VM
smokeTestOel7 - Smoke test the oel-7 VM
smokeTestOpensuse13 - Smoke test the opensuse-13 VM
smokeTestSles12 - Smoke test the sles-12 VM
smokeTestUbuntu1204 - Smoke test the ubuntu-1204 VM
smokeTestUbuntu1404 - Smoke test the ubuntu-1404 VM
smokeTestUbuntu1504 - Smoke test the ubuntu-1504 VM
vagrantHaltCentos6 - Shutdown the vagrant VM running centos-6
vagrantHaltCentos7 - Shutdown the vagrant VM running centos-7
vagrantHaltDebian8 - Shutdown the vagrant VM running debian-8
vagrantHaltFedora22 - Shutdown the vagrant VM running fedora-22
vagrantHaltOel7 - Shutdown the vagrant VM running oel-7
vagrantHaltOpensuse13 - Shutdown the vagrant VM running opensuse-13
vagrantHaltSles12 - Shutdown the vagrant VM running sles-12
vagrantHaltUbuntu1204 - Shutdown the vagrant VM running ubuntu-1204
vagrantHaltUbuntu1404 - Shutdown the vagrant VM running ubuntu-1404
vagrantHaltUbuntu1504 - Shutdown the vagrant VM running ubuntu-1504
vagrantSmokeTest - Smoke test some representative distros from the Vagrantfile
vagrantSmokeTestAllDistros - Smoke test all distros from the Vagrantfile
vagrantUpCentos6 - Startup a vagrant VM running centos-6
vagrantUpCentos7 - Startup a vagrant VM running centos-7
vagrantUpDebian8 - Startup a vagrant VM running debian-8
vagrantUpFedora22 - Startup a vagrant VM running fedora-22
vagrantUpOel7 - Startup a vagrant VM running oel-7
vagrantUpOpensuse13 - Startup a vagrant VM running opensuse-13
vagrantUpSles12 - Startup a vagrant VM running sles-12
vagrantUpUbuntu1204 - Startup a vagrant VM running ubuntu-1204
vagrantUpUbuntu1404 - Startup a vagrant VM running ubuntu-1404
vagrantUpUbuntu1504 - Startup a vagrant VM running ubuntu-1504
It does not make the "check" task depend on "checkPackages" so running the
vagrant tests is still optional. They are slow and depend on vagrant and
virtualbox.
The Package Verification tasks are useful for testing individual distros.
The Vagrant tasks are listed in `gradle tasks` primarily for discoverability.
This change removes the leftover pom files. A couple files were left for
reference, namely in qa tests that have not yet been migrated (vagrant
and multinode). The deb and rpm assemblies also still exist for
reference when finishing their setup in gradle.
See #13930
There are three ways `@Test` was used. Way one:
```java
@Test
public void flubTheBlort() {
```
This way was always replaced with:
```java
public void testFlubTheBlort() {
```
Or, maybe with a better method name if I was feeling generous.
Way two:
```java
@Test(throws=IllegalArgumentException.class)
public void testFoo() {
methodThatThrows();
}
```
This way of using `@Test` is actually pretty OK, but to get the tools to ban
`@Test` entirely it can't be used. Instead:
```java
public void testFoo() {
try {
methodThatThrows();
fail("Expected IllegalArgumentException");
} catch (IllegalArgumentException e ) {
assertThat(e.getMessage(), containsString("something"));
}
}
```
This is longer but tests more than the old ways and is much more precise.
Compare:
```java
@Test(throws=IllegalArgumentException.class)
public void testFoo() {
some();
copy();
and();
pasted();
methodThatThrows();
code(); // <---- This was left here by mistake and is never called
}
```
to:
```java
@Test(throws=IllegalArgumentException.class)
public void testFoo() {
some();
copy();
and();
pasted();
try {
methodThatThrows();
fail("Expected IllegalArgumentException");
} catch (IllegalArgumentException e ) {
assertThat(e.getMessage(), containsString("something"));
}
}
```
The final use of test is:
```java
@Test(timeout=1000)
public void testFoo() {
methodThatWasSlow();
}
```
This is the most insidious use of `@Test` because its tempting but tragically
flawed. Its flaws are:
1. Hard and fast timeouts can look like they are asserting that something is
faster and even do an ok job of it when you compare the timings on the same
machine but as soon as you take them to another machine they start to be
invalid. On a slow VM both the new and old methods fail. On a super-fast
machine the slower and faster ways succeed.
2. Tests often contain slow `assert` calls so the performance of tests isn't
sure to predict the performance of non-test code.
3. These timeouts are rude to debuggers because the test just drops out from
under it after the timeout.
Confusingly, timeouts are useful in tests because it'd be rude for a broken
test to cause CI to abort the whole build after it hits a global timeout. But
those timeouts should be very very long "backstop" timeouts and aren't useful
assertions about speed.
For all its flaws `@Test(timeout=1000)` doesn't have a good replacement __in__
__tests__. Nightly benchmarks like http://benchmarks.elasticsearch.org/ are
useful here because they run on the same machine but they aren't quick to check
and it takes lots of time to figure out the regressions. Sometimes its useful
to compare dueling implementations but that requires keeping both
implementations around. All and all we don't have a satisfactory answer to the
question "what do you replace `@Test(timeout=1000)`" with. So we handle each
occurrence on a case by case basis.
For files with `@Test` this also:
1. Removes excess blank lines. They don't help anything.
2. Removes underscores from method names. Those would fail any code style
checks we ever care to run and don't add to readability. Since I did this manually
I didn't do it consistently.
3. Make sure all test method names start with `test`. Some used to end in `Test` or start
with `verify` or `check` and they were picked up using the annotation. Without the
annotation they always need to start with `test`.
4. Organizes imports using the rules we generate for Eclipse. For the most part
this just removes `*` imports which is a win all on its own. It was "required"
to quickly remove `@Test`.
5. Removes unneeded casts. This is just a setting I have enabled in Eclipse and
forgot to turn off before I did this work. It probably isn't hurting anything.
6. Removes trailing whitespace. Again, another Eclipse setting I forgot to turn
off that doesn't hurt anything. Hopefully.
7. Swaps some tests override superclass tests to make them empty with
`assumeTrue` so that the reasoning for the skips is logged in the test run and
it doesn't "look like" that thing is being tested when it isn't.
8. Adds an oxford comma to an error message.
The total test count doesn't change. I know. I counted.
```bash
git checkout master && mvn clean && mvn install | tee with_test
git no_test_annotation master && mvn clean && mvn install | tee not_test
grep 'Tests summary' with_test > with_test_summary
grep 'Tests summary' not_test > not_test_summary
diff with_test_summary not_test_summary
```
These differ somewhat because some tests are skipped based on the random seed.
The total shouldn't differ. But it does!
```
1c1
< [INFO] Tests summary: 564 suites (1 ignored), 3171 tests, 31 ignored (31 assumptions)
---
> [INFO] Tests summary: 564 suites (1 ignored), 3167 tests, 17 ignored (17 assumptions)
```
These are the core unit tests. So we dig further:
```bash
cat with_test | perl -pe 's/\n// if /^Suite/;s/.*\n// if /IGNOR/;s/.*\n// if /Assumption #/;s/.*\n// if /HEARTBEAT/;s/Completed .+?,//' | grep Suite > with_test_suites
cat not_test | perl -pe 's/\n// if /^Suite/;s/.*\n// if /IGNOR/;s/.*\n// if /Assumption #/;s/.*\n// if /HEARTBEAT/;s/Completed .+?,//' | grep Suite > not_test_suites
diff <(sort with_test_suites) <(sort not_test_suites)
```
The four tests with lower test numbers are all extend `AbstractQueryTestCase`
and all have a method that looks like this:
```java
@Override
public void testToQuery() throws IOException {
assumeTrue("test runs only when at least a type is registered", getCurrentTypes().length > 0);
super.testToQuery();
}
```
It looks like this method was being double counted on master and isn't anymore.
Closes#14028
This commit makes sure that the plugin script looks at user, group and permissions of the elasticsearch bin dir and copies them over to the plugin bin subdirectory, whatever they are, so that they get properly setup depending on how elasticsearch was installed. We also make sure that execute permissions are added for files (we already did this before).
Relates to #11016Closes#14088
Depending on how elasticsearch is installed, we have two scenarios to take into account that relate to user, group and permissions assigned to the config directory:
1) deb/rpm package: /etc/elasticsearch is root:elasticsearch 750 and the plugin script is run from root user
2) tar/zip archive: es config dir is most likely elasticsearch:elasticsearch and the plugin script is most likely run from elasticsearch user
When the plugin script copies over the plugin config dir within the es config dir, it should take care of setting the proper user, group and permissions, which vary depending on how elasticsearch was installed in the first place. Should be root:elasticsearch 750 if installed from a package, or elasticsearch:elasticsearch if installed from an archive.
This commit makes sure that the plugin script looks at user, group and permissions of the config dir and copies them over to the plugin config subdirectory, whatever they are, so that they get properly setup depending on how elasticsearch was installed in the first place. We also make sure that execute permissions are left untouched for files.
Relates to #11016Closes#14048
When generating the rpm and dep package we now set proper group (elasticsearch) and permissions (750) to the conf dir (default /etc/elasticsearch). Same for the scripts subdirectory.
Expanded the assert_file bash function to also optionally check the group of files, so we can actually test that the group was set correctly.
Relates to #11016Closes#14017
It is rarely used and was not consistently handled by different distributions anyway.
This commit also adds a test for specifying CONF_DIR when installing plugins and
starting elasticsearch.
relates to #12712 and #12954closes#5329closes#13715
package installation creates the plugin directory already so when a plugin
is installed it prints the additional line
Plugins directory [/tmp/elasticsearch/plugins] does not exist. Creating...
Plugin cli tools configures logging with whatever is in the logging.yml.
If a file appender is configured for any of the logs this will cause creation
of an empty log file. If a plugin was for example installed as root it will
create empty logs at es.home/logs.
This is problematic when for example plugins are installed as root and es is run
as service. Logs will then be created in /usr/share/elasticsearch/logs
and can later not be removed by for example dpkg -r or -purge.
To avoid this, configure the logger to use an appender that writes to the same
output that plugin cli tool does. This allows other components that are called
from Plugin cli tool to write to the same terminal that plugin cli tool writes to
by using the logging mechanism already in place.
The logging conf is not read at all pb plugin cli tool.
As a side effect, the loging level for components that are called
from the plugin command such as the jar hell check can now be configured
with -Des.logger.level which makes it easier to debug the jar hell check.
Installs javatana in vivid, emulates its on-login actions when starting
elasticsearch and verifies that elasticsearch turns off javatana.
Relates to #13813
Before this commit he tests always run bin/plugin as root which is somewhat
unrealistic and causes trouble (log files owned by root instead of
elasticsearch). After this commit `bin/plugin` runs as root when elasticsearch
is installed via the repository and as elasticsearch otherwise which is much
more realistic.
This also adds extra timeout to starting elasticsearch which is required
when all the plugins are installed. And it fixes up a problem with logging
elasticsearch's log if elasticsearch doesn't start which came up multiple
time while debugging this problem.
Also adds docs recommending running `bin/plugin` as the user that owns the
Elasticsearch files or root if installed with the packages.
Closes#13557
This adds SuSe Linux Enterprise Server 12 to the list of tested VMs.
SLES 12 is using systemd, so that the current RPM works
out of the box.
SLES12 however is already quite old and does not ship with java8, so this
required adding an opensuse repo.