Vcsim container (#25236)

* Add container files for vcenter simulator
* Add controller file to spin up the container during tests

test/utils/docker/vcenter-simulator/Dockerfile

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+FROM fedora:25
+
+RUN (cd /lib/systemd/system/sysinit.target.wants/; for i in *; do [ $i == systemd-tmpfiles-setup.service ] || rm -f $i; done); \
+rm -f /lib/systemd/system/multi-user.target.wants/*; \
+rm -f /etc/systemd/system/*.wants/*; \
+rm -f /lib/systemd/system/local-fs.target.wants/*; \
+rm -f /lib/systemd/system/sockets.target.wants/*udev*; \
+rm -f /lib/systemd/system/sockets.target.wants/*initctl*; \
+rm -f /lib/systemd/system/basic.target.wants/*; \
+rm -f /lib/systemd/system/anaconda.target.wants/*;
+
+RUN dnf clean all && \
+    dnf -y --setopt=install_weak_deps=false install \
+    git \
+    glibc \
+    gcc \
+    golang-bin \
+    python-devel \
+    python-pip \
+    python-setuptools \
+    redhat-rpm-config \
+    yum \
+    && \
+    dnf clean all
+
+VOLUME /sys/fs/cgroup /run /tmp
+ENV container=docker
+RUN mkdir -p /opt/gocode
+RUN chmod -R 777 /opt/gocode
+ENV GOPATH=/opt/gocode
+RUN go get -u github.com/vmware/govmomi/vcsim
+RUN go get github.com/vmware/govmomi/govc
+RUN pip install psutil
+RUN pip install flask
+ADD flask_control.py /root/flask_control.py
+
+
+EXPOSE 5000 8989 443 80 8080
+CMD ["/root/flask_control.py"]

test/utils/docker/vcenter-simulator/flask_control.py

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+#!/usr/bin/env python
+
+import os
+import psutil
+import socket
+import subprocess
+
+from flask import Flask
+from flask import jsonify
+from flask import request
+
+
+app = Flask(__name__)
+GOPATH = os.path.expanduser('/opt/gocode')
+VCSIMPATH = os.path.join(GOPATH, 'bin', 'vcsim')
+GOVCPATH = os.path.join(GOPATH, 'bin', 'govc')
+GOVCURL = None
+
+
+@app.route('/')
+def m_index():
+    return 'vcsim controller'
+
+
+@app.route('/kill/<int:number>')
+def kill_one(number):
+    """Kill any arbitrary process id"""
+
+    success = False
+    e = None
+
+    try:
+        p = psutil.Process(number)
+        p.terminate()
+        success = True
+    except Exception as e:
+        pass
+
+    return jsonify({'success': success, 'e': str(e)})
+
+
+@app.route('/killall')
+def kill_all():
+    """Kill ALL of the running vcsim pids"""
+
+    results = []
+
+    for x in psutil.pids():
+        p = psutil.Process(x)
+        if VCSIMPATH in p.cmdline():
+            success = False
+            e = None
+            try:
+                p.terminate()
+                success = True
+            except Exception as e:
+                pass
+            results.append(
+                {'pid': x, 'cmdline': p.cmdline(),
+                 'success': success, 'e': str(e)}
+            )
+
+    return jsonify(results)
+
+
+@app.route('/spawn')
+def spawn_vcsim():
+    """Launch vcsim in a background process and return the pid+govcm_url"""
+
+    global GOVCURL
+
+    username = request.args.get('username') or 'user'
+    password = request.args.get('password') or 'pass'
+    hostname = request.args.get('hostname') or \
+        socket.gethostbyname(socket.gethostname())
+    port = request.args.get('port') or '443'
+    port = int(port)
+
+    # FIXME - enable tracing
+    if request.args.get('trace'):
+        trace = True
+    else:
+        trace = False
+
+    # vcsim cli options and their default values
+    cli_opts = [
+        ['app', 0],
+        ['cluster', 0],
+        ['dc', 1],
+        ['ds', 1],
+        ['folder', 1],
+        ['host', 3],
+        ['pg', 1],
+        ['pod', 1],
+        ['pool', 1],
+        ['vm', 2]
+    ]
+
+    # useful for client govc commands
+    govc_url = 'https://%s:%s@%s:%s' % (username, password, hostname, port)
+    GOVCURL = govc_url
+
+    # need these to run the service
+    env = {
+        'GOPATH': GOPATH,
+        'GOVC_URL': govc_url,
+        'GOVC_INSECURE': '1'
+    }
+
+    # build the command
+    cmd = [
+        VCSIMPATH,
+        '-httptest.serve',
+        '%s:%s' % (hostname, port),
+    ]
+    for x in cli_opts:
+        name = x[0]
+        default = x[1]
+        if request.args.get(name):
+            default = request.args.get(name)
+        cmd.append('-%s=%s' % (name, default))
+    cmd = ' '.join(cmd)
+    cmd += ' 2>&1 > vcsim.log'
+
+    # run it with environment settings
+    p = subprocess.Popen(
+        cmd,
+        env=env,
+        shell=True
+    )
+
+    # return the relevant data
+    pid = p.pid
+    rdata = {
+        'cmd': cmd,
+        'pid': pid,
+        'host': hostname,
+        'port': port,
+        'username': username,
+        'password': password,
+        'GOVC_URL': govc_url
+    }
+
+    return jsonify(rdata)
+
+
+@app.route('/govc_find')
+def govc_find():
+    """Run govc find and optionally filter results"""
+
+    global GOVCURL
+
+    ofilter = request.args.get('filter') or None
+
+    env = {
+        'GOPATH': GOPATH,
+        'GOVC_URL': GOVCURL,
+        'GOVC_INSECURE': '1'
+    }
+
+    cmd = '%s find 2>&1' % GOVCPATH
+
+    p = subprocess.Popen(
+        cmd,
+        stdout=subprocess.PIPE,
+        stderr=subprocess.PIPE,
+        env=env,
+        shell=True
+    )
+
+    (so, se) = p.communicate()
+    stdout_lines = so.split('\n')
+
+    if ofilter:
+        stdout_lines = [x for x in stdout_lines if ofilter in x]
+
+    return jsonify(stdout_lines)
+
+
+if __name__ == "__main__":
+    app.run(debug=False, host='0.0.0.0')

test/utils/docker/vcenter-simulator/make.sh

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+#!/bin/bash
+
+docker build -t ansible:vcenter-simulator .