Update server-base and server-slim-base to production-like images

[devinrsmith]

This was a longer-than-expected effort to close the gap between production images, and integration testing images. The big updates: the base images are now based on ubuntu:22.04 (instead of an old debian), and the python version is now 3.10 (instead of an old 3.7). These images are now being produced with Dockerfiles from https://github.com/deephaven/deephaven-server-docker that are as similar to the production images as possible.

Necessary testing fixes already done in #3331

[devinrsmith]

Looks like some sphinx typing/documentation issues w/ 3.10.

[jmao-denver]

I was able to make the sphinx task pass locally with the following change.

diff --git a/sphinx/source/conf.py b/sphinx/source/conf.py
index 5f3ee1b4c9..e8116e9c9a 100644
--- a/sphinx/source/conf.py
+++ b/sphinx/source/conf.py
@@ -85,10 +85,26 @@ jvm_properties = {
             'deephaven.dataDir': os.path.realpath(workspace),
         }

+jvm_options = {
+    '-XX:InitialRAMPercentage=25.0',
+    '-XX:MinRAMPercentage=70.0',
+    '-XX:MaxRAMPercentage=80.0',
+
+    # Allow netty to (reflectively) access java.nio.Buffer fields
+    '--add-opens=java.base/java.nio=ALL-UNNAMED',
+
+    # Allow our hotspot-impl project to access internals
+    '--add-exports=java.management/sun.management=ALL-UNNAMED',
+
+    # Allow our clock-impl project to access internals
+    '--add-exports=java.base/jdk.internal.misc=ALL-UNNAMED',
+}
+
 from deephaven_internal import jvm
 jvm.init_jvm(
     jvm_classpath=glob(os.environ.get('DEEPHAVEN_CLASSPATH')),
     jvm_properties=jvm_properties,
+    jvm_options=jvm_options,
 )

 import jpy
@@ -96,6 +112,7 @@ py_scope_jpy = jpy.get_type("io.deephaven.engine.util.PythonScopeJpyImpl").ofMai
 py_dh_session = jpy.get_type("io.deephaven.integrations.python.PythonDeephavenSession")(py_scope_jpy)
 py_dh_session.getExecutionContext().open()

+
 import deephaven
 docs_title = "Deephaven python modules."
 package_roots = [jpy, deephaven]

[devinrsmith]

I also needed to update the location of grpc_health_probe to match the production location

[jmao-denver]

LGTM and partially tested locally

[rcaudy]

Is this valid? Only netty? Does sphinx still use netty?

[devinrsmith]

I think the netty part is too specific. It looks like it's also required by arrow, and potentially other low-level components. I've removed the explicit reference to "netty".