Improve CI (#198)

* Use remote temp path, replace remote lookups.

* Copy local files.

* Change docker resource name prefix from ansible-test to ansible-docker-test to avoid collision with ansible-test's containers.

* Fix typos.

* We don't neceessarily have a TTY.

* Use hopefully less collision-likely subnet.

* More collision avoidance.

* More changes.

tests/integration/targets/generic_ssh_connection/tasks/main.yml

@@ -22,9 +22,17 @@
   command: ls -lah ~/.ssh
   ignore_errors: true
 
+- name: Recover home directory on remote
+  command: echo $HOME
+  register: remote_home
+
+- name: Print remote home directory
+  debug:
+    var: remote_home.stdout
+
 - name: Create SSH config
   copy:
-    dest: "{{ lookup('env', 'HOME') }}/.ssh/config"
+    dest: "{{ remote_home.stdout }}/.ssh/config"
     mode: '0600'
     content: |
       Host localhost