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-rw-r--r--utils/src/ooinstall/cli_installer.py120
-rw-r--r--utils/src/ooinstall/oo_config.py9
-rw-r--r--utils/src/ooinstall/openshift_ansible.py82
3 files changed, 176 insertions, 35 deletions
diff --git a/utils/src/ooinstall/cli_installer.py b/utils/src/ooinstall/cli_installer.py
index 84092a774..d7c06745e 100644
--- a/utils/src/ooinstall/cli_installer.py
+++ b/utils/src/ooinstall/cli_installer.py
@@ -72,13 +72,14 @@ def delete_hosts(hosts):
click.echo("\"{}\" doesn't coorespond to any valid input.".format(del_idx))
return hosts, None
-def collect_hosts(master_set=False):
+def collect_hosts(version=None, masters_set=False, print_summary=True):
"""
Collect host information from user. This will later be filled in using
ansible.
Returns: a list of host information collected from the user
"""
+ min_masters_for_ha = 3
click.clear()
click.echo('***Host Configuration***')
message = """
@@ -102,17 +103,20 @@ http://docs.openshift.com/enterprise/latest/architecture/infrastructure_componen
hosts = []
more_hosts = True
+ num_masters = 0
while more_hosts:
host_props = {}
- hostname_or_ip = click.prompt('Enter hostname or IP address:',
- default='',
- value_proc=validate_prompt_hostname)
-
- host_props['connect_to'] = hostname_or_ip
- if not master_set:
- is_master = click.confirm('Will this host be an OpenShift Master?')
- host_props['master'] = is_master
- master_set = is_master
+ host_props['connect_to'] = click.prompt('Enter hostname or IP address:',
+ default='',
+ value_proc=validate_prompt_hostname)
+
+ if not masters_set:
+ if click.confirm('Will this host be an OpenShift Master?'):
+ host_props['master'] = True
+ num_masters += 1
+
+ if num_masters >= min_masters_for_ha or version == '3.0':
+ masters_set = True
host_props['node'] = True
#TODO: Reenable this option once container installs are out of tech preview
@@ -129,9 +133,51 @@ http://docs.openshift.com/enterprise/latest/architecture/infrastructure_componen
hosts.append(host)
- more_hosts = click.confirm('Do you want to add additional hosts?')
+ if print_summary:
+ click.echo('')
+ click.echo('Current Masters: {}'.format(num_masters))
+ click.echo('Current Nodes: {}'.format(len(hosts)))
+ click.echo('Additional Masters required for HA: {}'.format(max(min_masters_for_ha - num_masters, 0)))
+ click.echo('')
+
+ if num_masters <= 1 or num_masters >= min_masters_for_ha:
+ more_hosts = click.confirm('Do you want to add additional hosts?')
+
+ if num_masters > 1:
+ hosts.append(collect_master_lb())
+
return hosts
+def collect_master_lb():
+ """
+ Get an HA proxy from the user
+ """
+ message = """
+Setting up High Availability Masters requires a load balancing solution.
+Please provide a host that will be configured as a proxy. This can either be
+an existing load balancer configured to balance all masters on port 8443 or a
+new host that will have HAProxy installed on it.
+
+If the host provided does is not yet configured a reference haproxy load
+balancer will be installed. It's important to note that while the rest of the
+environment will be fault tolerant this reference load balancer will not be.
+It can be replaced post-installation with a load balancer with the same
+hostname.
+"""
+ click.echo(message)
+ host_props = {}
+ host_props['connect_to'] = click.prompt('Enter hostname or IP address:',
+ default='',
+ value_proc=validate_prompt_hostname)
+ install_haproxy = click.confirm('Should the reference haproxy load balancer be installed on this host?')
+ host_props['preconfigured'] = not install_haproxy
+ host_props['master'] = False
+ host_props['node'] = False
+ host_props['master_lb'] = True
+ master_lb = Host(**host_props)
+
+ return master_lb
+
def confirm_hosts_facts(oo_cfg, callback_facts):
hosts = oo_cfg.hosts
click.clear()
@@ -169,6 +215,8 @@ Notes:
default_facts_lines = []
default_facts = {}
for h in hosts:
+ if h.preconfigured == True:
+ continue
default_facts[h.connect_to] = {}
h.ip = callback_facts[h.connect_to]["common"]["ip"]
h.public_ip = callback_facts[h.connect_to]["common"]["public_ip"]
@@ -199,7 +247,41 @@ Edit %s with the desired values and run `atomic-openshift-installer --unattended
sys.exit(0)
return default_facts
-def get_variant_and_version():
+
+
+def check_hosts_config(oo_cfg):
+ click.clear()
+ masters = [host for host in oo_cfg.hosts if host.master]
+ if len(masters) > 1:
+ master_lb = [host for host in oo_cfg.hosts if host.master_lb]
+ if len(master_lb) > 1:
+ click.echo('More than one Master load balancer specified. Only one is allowed.')
+ sys.exit(0)
+ elif len(master_lb) == 1:
+ if master_lb[0].master or master_lb[0].node:
+ click.echo('The Master load balancer is configured as a master or node. Please correct this.')
+ sys.exit(0)
+ else:
+ message = """
+No HAProxy given in config. Either specify one or provide a load balancing solution
+of your choice to balance the master API (port 8443) on all master hosts.
+
+https://docs.openshift.org/latest/install_config/install/advanced_install.html#multiple-masters
+"""
+ confirm_continue(message)
+
+ nodes = [host for host in oo_cfg.hosts if host.node]
+ if len(masters) == len(nodes):
+ message = """
+No dedicated Nodes specified. By default, colocated Masters have their Nodes
+set to unscheduleable. Continuing at this point will label all nodes as
+scheduleable.
+"""
+ confirm_continue(message)
+
+ return
+
+def get_variant_and_version(multi_master=False):
message = "\nWhich variant would you like to install?\n\n"
i = 1
@@ -211,6 +293,8 @@ def get_variant_and_version():
message = "%s\n" % message
click.echo(message)
+ if multi_master:
+ click.echo('NOTE: 3.0 installations are not')
response = click.prompt("Choose a variant from above: ", default=1)
product, version = combos[response - 1]
@@ -292,16 +376,16 @@ https://docs.openshift.com/enterprise/latest/admin_guide/install/prerequisites.h
oo_cfg.settings['ansible_ssh_user'] = get_ansible_ssh_user()
click.clear()
- if not oo_cfg.hosts:
- oo_cfg.hosts = collect_hosts()
- click.clear()
-
if oo_cfg.settings.get('variant', '') == '':
variant, version = get_variant_and_version()
oo_cfg.settings['variant'] = variant.name
oo_cfg.settings['variant_version'] = version.name
click.clear()
+ if not oo_cfg.hosts:
+ oo_cfg.hosts = collect_hosts(version=oo_cfg.settings['variant_version'])
+ click.clear()
+
return oo_cfg
@@ -312,7 +396,7 @@ def collect_new_nodes():
Add new nodes here
"""
click.echo(message)
- return collect_hosts(True)
+ return collect_hosts(masters_set=True, print_summary=False)
def get_installed_hosts(hosts, callback_facts):
installed_hosts = []
@@ -555,6 +639,8 @@ def install(ctx, force):
else:
oo_cfg = get_missing_info_from_user(oo_cfg)
+ check_hosts_config(oo_cfg)
+
click.echo('Gathering information from hosts...')
callback_facts, error = openshift_ansible.default_facts(oo_cfg.hosts,
verbose)
diff --git a/utils/src/ooinstall/oo_config.py b/utils/src/ooinstall/oo_config.py
index 9c97e6e93..b6f0cdce3 100644
--- a/utils/src/ooinstall/oo_config.py
+++ b/utils/src/ooinstall/oo_config.py
@@ -36,19 +36,24 @@ class Host(object):
self.public_ip = kwargs.get('public_ip', None)
self.public_hostname = kwargs.get('public_hostname', None)
self.connect_to = kwargs.get('connect_to', None)
+ self.preconfigured = kwargs.get('preconfigured', None)
# Should this host run as an OpenShift master:
self.master = kwargs.get('master', False)
# Should this host run as an OpenShift node:
self.node = kwargs.get('node', False)
+
+ # Should this host run as an HAProxy:
+ self.master_lb = kwargs.get('master_lb', False)
+
self.containerized = kwargs.get('containerized', False)
if self.connect_to is None:
raise OOConfigInvalidHostError("You must specify either and 'ip' " \
"or 'hostname' to connect to.")
- if self.master is False and self.node is False:
+ if self.master is False and self.node is False and self.master_lb is False:
raise OOConfigInvalidHostError(
"You must specify each host as either a master or a node.")
@@ -62,7 +67,7 @@ class Host(object):
""" Used when exporting to yaml. """
d = {}
for prop in ['ip', 'hostname', 'public_ip', 'public_hostname',
- 'master', 'node', 'containerized', 'connect_to']:
+ 'master', 'node', 'master_lb', 'containerized', 'connect_to', 'preconfigured']:
# If the property is defined (not None or False), export it:
if getattr(self, prop):
d[prop] = getattr(self, prop)
diff --git a/utils/src/ooinstall/openshift_ansible.py b/utils/src/ooinstall/openshift_ansible.py
index 372f27bda..75125084c 100644
--- a/utils/src/ooinstall/openshift_ansible.py
+++ b/utils/src/ooinstall/openshift_ansible.py
@@ -17,14 +17,17 @@ def set_config(cfg):
def generate_inventory(hosts):
global CFG
+ masters = [host for host in hosts if host.master]
+ nodes = [host for host in hosts if host.node]
+ proxy = determine_proxy_configuration(hosts)
+ multiple_masters = len(masters) > 1
base_inventory_path = CFG.settings['ansible_inventory_path']
base_inventory = open(base_inventory_path, 'w')
- base_inventory.write('\n[OSEv3:children]\nmasters\nnodes\n')
- base_inventory.write('\n[OSEv3:vars]\n')
- base_inventory.write('ansible_ssh_user={}\n'.format(CFG.settings['ansible_ssh_user']))
- if CFG.settings['ansible_ssh_user'] != 'root':
- base_inventory.write('ansible_become=true\n')
+
+ write_inventory_children(base_inventory, multiple_masters, proxy)
+
+ write_inventory_vars(base_inventory, multiple_masters, proxy)
# Find the correct deployment type for ansible:
ver = find_variant(CFG.settings['variant'],
@@ -45,22 +48,69 @@ def generate_inventory(hosts):
"'enabled': 1, 'gpgcheck': 0}}]\n".format(os.environ['OO_INSTALL_PUDDLE_REPO']))
base_inventory.write('\n[masters]\n')
- masters = (host for host in hosts if host.master)
for master in masters:
write_host(master, base_inventory)
+
+ if len(masters) > 1:
+ base_inventory.write('\n[etcd]\n')
+ for master in masters:
+ write_host(master, base_inventory)
+
base_inventory.write('\n[nodes]\n')
- nodes = (host for host in hosts if host.node)
- for node in nodes:
- # TODO: Until the Master can run the SDN itself we have to configure the Masters
- # as Nodes too.
- scheduleable = True
- # If there's only one Node and it's also a Master we want it to be scheduleable:
- if node in masters and len(masters) != 1:
- scheduleable = False
- write_host(node, base_inventory, scheduleable)
+
+ # TODO: It would be much better to calculate the scheduleability elsewhere
+ # and store it on the Node object.
+ if set(nodes) == set(masters):
+ for node in nodes:
+ write_host(node, base_inventory)
+ else:
+ for node in nodes:
+ # TODO: Until the Master can run the SDN itself we have to configure the Masters
+ # as Nodes too.
+ scheduleable = True
+ if node in masters:
+ scheduleable = False
+ write_host(node, base_inventory, scheduleable)
+
+ if not getattr(proxy, 'preconfigured', True):
+ base_inventory.write('\n[lb]\n')
+ write_host(proxy, base_inventory)
+
base_inventory.close()
return base_inventory_path
+def determine_proxy_configuration(hosts):
+ proxy = next((host for host in hosts if host.master_lb), None)
+ if proxy:
+ if proxy.hostname == None:
+ proxy.hostname = proxy.connect_to
+ proxy.public_hostname = proxy.connect_to
+ return proxy
+
+ return None
+
+def write_inventory_children(base_inventory, multiple_masters, proxy):
+ global CFG
+
+ base_inventory.write('\n[OSEv3:children]\n')
+ base_inventory.write('masters\n')
+ base_inventory.write('nodes\n')
+ if multiple_masters:
+ base_inventory.write('etcd\n')
+ if not getattr(proxy, 'preconfigured', True):
+ base_inventory.write('lb\n')
+
+def write_inventory_vars(base_inventory, multiple_masters, proxy):
+ global CFG
+ base_inventory.write('\n[OSEv3:vars]\n')
+ base_inventory.write('ansible_ssh_user={}\n'.format(CFG.settings['ansible_ssh_user']))
+ if CFG.settings['ansible_ssh_user'] != 'root':
+ base_inventory.write('ansible_become=true\n')
+ if multiple_masters:
+ base_inventory.write('openshift_master_cluster_method=native\n')
+ base_inventory.write("openshift_master_cluster_hostname={}\n".format(proxy.hostname))
+ base_inventory.write("openshift_master_cluster_public_hostname={}\n".format(proxy.public_hostname))
+
def write_host(host, inventory, scheduleable=True):
global CFG
@@ -118,6 +168,7 @@ def default_facts(hosts, verbose=False):
facts_env = os.environ.copy()
facts_env["OO_INSTALL_CALLBACK_FACTS_YAML"] = CFG.settings['ansible_callback_facts_yaml']
facts_env["ANSIBLE_CALLBACK_PLUGINS"] = CFG.settings['ansible_plugins_directory']
+ facts_env["OPENSHIFT_MASTER_CLUSTER_METHOD"] = 'native'
if 'ansible_log_path' in CFG.settings:
facts_env["ANSIBLE_LOG_PATH"] = CFG.settings['ansible_log_path']
if 'ansible_config' in CFG.settings:
@@ -176,4 +227,3 @@ def run_upgrade_playbook(verbose=False):
if 'ansible_config' in CFG.settings:
facts_env['ANSIBLE_CONFIG'] = CFG.settings['ansible_config']
return run_ansible(playbook, inventory_file, facts_env, verbose)
-