I would suggest that you have authorization in your web-application, and SoapUI fails to load it because it is not authorized.

follow the documentation and add it to the URL.

&CacheUserName=_SYSTEM&CachePassword=SYS

When you want to use Ensemble on Docker, it means that you need some integration with some external services. When you have to connect to some external services, no need any extra actions. But when you should use some shared folder, or some own internal services, which will be used by others, you have to expose some TCP ports, or volumes, and do some changes in a running process for this container. But you can use some network settings for the container, and in this case, Ensemble will be as a usual machine in your network, and you don't need to change any settings when you have to add some new internal service into Ensemble Production.
Windows also supports Docker but from version Server 2016. Windows also supports windows containers, but I don't know yet, is it supported to run windows version of Ensemble or not.

What you need to start your first Ensemble container within Ensemble application. The easiest way is to define some %Installer Manifest. When you can create a new database, load and compile your code, do some changes in an Ensemble settings.
There are some different examples of Dockerfile.
Quite simple, with only Ensemble. Or even with Apache inside, for some web application.

You can also look at this example of Dockerfile

### Cache ###
FROM tutum/centos:latest

MAINTAINER Dmitry Maslennikov <Dmitry.Maslennikov@csystem.cz>

# update OS + dependencies & run Caché silent instal
RUN yum -y update \
 && yum -y install which tar hostname net-tools wget \
 && yum -y clean all \ 
 && ln -sf /etc/locatime /usr/share/zoneinfo/Europe/Prague

ARG WRC_USERNAME
ARG WRC_PASSWORD
ARG cache=ensemble-2016.2.1.803.0
ARG globals8k=512
ARG routines=32
ARG locksiz=117964800

ENV TMP_INSTALL_DIR=/tmp/distrib

# vars for Caché silent install
ENV ISC_PACKAGE_INSTANCENAME="ENSEMBLE" \
    ISC_PACKAGE_INSTALLDIR="/opt/ensemble/" \
    ISC_PACKAGE_UNICODE="Y" \
    ISC_PACKAGE_CLIENT_COMPONENTS="" \

# vars for install our application     
    ISC_INSTALLER_MANIFEST=${TMP_INSTALL_DIR}/Installer.cls \
    ISC_INSTALLER_LOGFILE=installer_log \
    ISC_INSTALLER_LOGLEVEL=3 \
    ISC_INSTALLER_PARAMETERS="routines=$routines,locksiz=$locksiz,globals8k=$globals8k"

# set-up and install Caché from distrib_tmp dir 
WORKDIR ${TMP_INSTALL_DIR}

# our application installer
COPY Installer.cls .
# custom installation manifest 
COPY custom_install-manifest.isc ./$cache-lnxrhx64/package/custom_install/manifest.isc 
# license file
COPY cache.key $ISC_PACKAGE_INSTALLDIR/mgr/

# cache distributive
RUN wget -qO /dev/null --keep-session-cookies --save-cookies /dev/stdout --post-data="UserName=$WRC_USERNAME&Password=$WRC_PASSWORD" 'https://login.intersystems.com/login/SSO.UI.Login.cls?referrer=https%253A//wrc.intersystems.com/wrc/login.csp' \
 | wget -O - --load-cookies /dev/stdin "https://wrc.intersystems.com/wrc/WRC.StreamServer.cls?FILE=/wrc/distrib/$cache-lnxrhx64.tar.gz" \
 | tar xvfzC - . \
 && chmod +r ./$cache-lnxrhx64/package/custom_install/manifest.isc \
 && ./$cache-lnxrhx64/cinstall_silent custom_install \
 && cat $ISC_PACKAGE_INSTALLDIR/mgr/cconsole.log \
 && cat $ISC_PACKAGE_INSTALLDIR/mgr/installer_log \
 && ccontrol stop $ISC_PACKAGE_INSTANCENAME quietly \
 && rm -rf $TMP_INSTALL_DIR

# Caché container main process PID 1 (https://github.com/zrml/ccontainermain)
RUN curl -L https://github.com/daimor/ccontainermain/releases/download/0.1/ccontainermain -o /ccontainermain \
 && chmod +x /ccontainermain

# TCP sockets that can be accessed if user wants to (see 'docker run -p' flag)
EXPOSE 57772 1972 22

ENTRYPOINT ["/ccontainermain", "-cconsole", "-i", "ensemble"]

And installer manifest, with just some settings.

Class Temp.Installer 
{

XData setup [ XMLNamespace = INSTALLER ]
{
<Manifest>
  <If Condition='+"${routines}"=0'>
    <Var Name="routines" Value="32"/>
  </If>
  <If Condition='+"${globals8k}"=0'>
    <Var Name="globals8k" Value="256"/>
  </If>
  <If Condition='+"${locksiz}"=0'>
    <Var Name="locksiz" Value="1179648"/>
  </If>

  <SystemSetting 
    Name="Config.config.routines"
    Value="${routines}"/>

  <SystemSetting 
    Name="Config.config.globals8kb"
    Value="${globals8k}"/>

  <SystemSetting 
    Name="Config.config.locksiz"
    Value="${locksiz}"/>

</Manifest>
}

ClassMethod setup(
    ByRef pVars, 
    pLogLevel As %Integer = 3, 
    pInstaller As %Installer.Installer, 
    pLogger As %Installer.AbstractLogger
  ) As %Status [ CodeMode = objectgenerator, Internal ]
{
    do %code.WriteLine($char(9)_"set pVars(""CURRENTCLASS"")="""_%classname_"""")
    do %code.WriteLine($char(9)_"set pVars(""CURRENTNS"")="""_$namespace_"""")
  #; Let our XGL document generate code for this method. 
  Quit ##class(%Installer.Manifest).%Generate(%compiledclass, %code, "setup")
}

}

In this example, Ensemble distributive will be downloaded directly from the WRC.

to build this image

docker build -t ensemble --build-arg WRC_USERNAME=******* --build-arg WRC_PASSWORD=******* .

and to run the container from this image

docker run -p 57772:57772 ensemble

Most companies doing their backup over the network. It depends on how big your database, and you should estimate,  how quickly it will be in your case theoretical and in practice. Unfortunately, on some old versions of Caché, in some cases there are some lack of performance and backup may work not so fast as expected. We had such issue with 2012.2.

And a little hint, to do backup over the network, Caché instance should have an access. And if your Caché works on Windows, you should change user in settings for Caché Service, to some domain user, which will have access to write.

Look at this open source project, it is a spatial index for Caché, this project was done at the first InterSystems hackathon in Moscow. And the article in Russian about it.

As I understand you have to connect to another server, so, you can use class %IO.Socket. With methods Write/Read to send/retrieve data. If you have to create an own server, which will be used by some other servers, you can use %IO.ServerSocket class.

You got this error because you tried to use ODBC connection, but you say that you have JDBC connection. You should understand that it is different, with different ways to connect.

If you really use JDBC, you can create the new connection to the Oracle database, with a help from this article in the documentation. And with a code something like this, you can retrieve needed data from that server.

 #dim %JDBCGateway As %Net.Remote.Java.JDBCGateway
  set conn=$system.SQLGateway.GetJDBCConnection("cache2samples")
  if conn'="" {
    set cmd = "SELECT top 10 id,ssn,name,age,dob FROM Sample.Person"
    set st = %JDBCGateway.prepareStatement(conn,cmd)
    set %JDBCGateway.StatementCache(conn) = st
    set query = %JDBCGateway.execQuery(st)
    set columns=%JDBCGateway.getColumnCount(st)
    write !
    set pos=0
    for i=1:1:columns {
      set name=%JDBCGateway.getColumnName(st,i)
      set size=%JDBCGateway.getColumnDisplaySize(st,i)
      set pos(i)=pos
      set pos=pos+size+1
      write name,?pos
    }
    while %JDBCGateway.next(st) {
      write !
      for i=1:1:columns {
        write ?pos(i),%JDBCGateway.getString(st,i) 
      }
    }
  }

In password security most valuable is entropy.

And a bit of humor about it.

It means, that even if you have a quite hard pattern for the password, but some password will not be strong enough.

On the internet, you can find some online calculators, for the password, when you can check how different symbols change difficulty. For example http://www.passwordmeter.com/

in this mode, you should have access to call ^SECURITY tool, where you can what you want.

%SYS>d ^SECURITY


1) User setup
2) Role setup
3) Service setup
4) Resource setup
5) Application setup
6) Auditing setup
7) Domain setup
8) SSL configuration setup
9) Mobile phone service provider setup
10) OpenAM Identity Services setup
11) Encryption key setup
12) System parameter setup
13) X509 User setup
14) Exit

Option? 1

1) Create user
2) Edit user
3) List users
4) Detailed list users
5) Delete user
6) Export users
7) Import users
8) Exit

Everything that you should do, to support https, is to configure your web server. As you use Apache, you should configure it, by any of tutorials, which you can find in the internet. Nothing should be done from Caché side, it is should work in any case.

You should check settings for you Apache server, to be sure that nothing wrong there, and it works well, you can also check it with some static files, like html.

ccontrol works on windows systems, but not in this way as expected on Unix systems.

Anyway, rename instance possible, but it would be a very difficult to get working system after that. Just because does not enough just rename it. You should find all mentions of this name inside of Cache and rename it too. So, I would recommend to install new system near and move your configuration from old one.