diff options
Diffstat (limited to 'utils/src')
| -rw-r--r-- | utils/src/ooinstall/cli_installer.py | 124 | ||||
| -rw-r--r-- | utils/src/ooinstall/oo_config.py | 9 | ||||
| -rw-r--r-- | utils/src/ooinstall/openshift_ansible.py | 92 |
3 files changed, 183 insertions, 42 deletions
diff --git a/utils/src/ooinstall/cli_installer.py b/utils/src/ooinstall/cli_installer.py index 0b3af8829..0b38f706c 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 = """ @@ -89,7 +90,7 @@ change this later using etcd from Red Hat Enterprise Linux 7. Any Masters configured as part of this installation process will also be configured as Nodes. This is so that the Master will be able to proxy to Pods -from the API. By default this Node will be unscheduleable but this can be changed +from the API. By default this Node will be unschedulable but this can be changed after installation with 'oadm manage-node'. The OpenShift Node provides the runtime environments for containers. It will @@ -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 unschedulable. Continuing at this point will label all nodes as +schedulable. +""" + 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 = [] @@ -487,7 +571,7 @@ def uninstall(ctx): verbose = ctx.obj['verbose'] if len(oo_cfg.hosts) == 0: - click.echo("No hosts defined in: %s" % oo_cfg['configuration']) + click.echo("No hosts defined in: %s" % oo_cfg.config_path) sys.exit(1) click.echo("OpenShift will be uninstalled from the following hosts:\n") @@ -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..4aa60922d 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'], @@ -45,24 +48,71 @@ 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. + schedulable = True + if node in masters: + schedulable = False + write_host(node, base_inventory, schedulable) + + 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_host(host, inventory, scheduleable=True): +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, schedulable=True): global CFG facts = '' @@ -76,8 +126,8 @@ def write_host(host, inventory, scheduleable=True): facts += ' openshift_public_hostname={}'.format(host.public_hostname) # TODO: For not write_host is handles both master and nodes. # Technically only nodes will ever need this. - if not scheduleable: - facts += ' openshift_scheduleable=False' + if not schedulable: + facts += ' openshift_schedulable=False' installer_host = socket.gethostname() if installer_host in [host.connect_to, host.hostname, host.public_hostname]: facts += ' ansible_connection=local' @@ -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: @@ -130,10 +181,10 @@ def run_main_playbook(hosts, hosts_to_run_on, verbose=False): inventory_file = generate_inventory(hosts_to_run_on) if len(hosts_to_run_on) != len(hosts): main_playbook_path = os.path.join(CFG.ansible_playbook_directory, - 'playbooks/common/openshift-cluster/scaleup.yml') + 'playbooks/byo/openshift-cluster/scaleup.yml') else: main_playbook_path = os.path.join(CFG.ansible_playbook_directory, - 'playbooks/byo/config.yml') + 'playbooks/byo/openshift-cluster/config.yml') facts_env = os.environ.copy() if 'ansible_log_path' in CFG.settings: facts_env['ANSIBLE_LOG_PATH'] = CFG.settings['ansible_log_path'] @@ -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) - |