Update README.md, remove manage script

README.md

@@ -10,7 +10,9 @@ a Docker image) which contains utilities to manage your cluster.
 * You need to have ssh access (either as root, or as another user that can
   `sudo`) to the machines that will make up your cluster.
 * You need `ansible >= 2.5` installed on your workstation to run the bootstrap
-  scripts. Install the requirements like this:
+  scripts. Please install it using your system package manager.
+  In the case your system package manager doesn't provide `ansible >= 2.5` you
+  can install it via the python package manager like this:
 
     `pip3 install --user -r ansible/requirements.txt`
 
@@ -37,9 +39,15 @@ ansible-playbook bootstrap.yml
 
 ## Managing an existing cluster
 
-The OpenAppStack project has created a special "control shell", a Docker
-container that you can run to perform administrative tasks on your cluster.
-Some programs that you can run from this shell:
+Login to your cluster with:
+
+    ssh USER@SERVER
+
+where `SERVER` is the address of the master machine of your cluster and
+`USER` the `ansible_user` you configured in `ansible/inventory.yml`.
+
+Some programs that are installed on your cluster:
+
 * `kubectl` is the Kubernetes control program. For example, run
   `kubectl get pod` to see a list of pods that currently exist in your cluster.
   Run `kubectl --help` for help.
@@ -50,11 +58,3 @@ Some programs that you can run from this shell:
   run `helmfile -e oas diff` to view the differences between what's currently
   installed and what should be installed according to the OpenAppStack
   installation plan.
-
-To start the control shell, run
-
-```
-./manage $SERVER
-```
-
-where `$SERVER` is the address of the master machine of your cluster.

manage

-#!/bin/bash
-
-if [ -z "$1" ]
-then
-    echo "Usage: ./manage SERVER-IP"
-    exit 1
-else
-    host=$1
-fi
-
-ssh -t "root@${host}" bash -ic "oas_controlshell"