[pve-devel] [PATCH cluster v3 01/14] move addnode/delnode from CLI to cluster config API
Thomas Lamprecht
t.lamprecht at proxmox.com
Tue Dec 19 12:52:26 CET 2017
---
no changes
data/PVE/API2/ClusterConfig.pm | 210 ++++++++++++++++++++++++++++++++++++++
data/PVE/CLI/pvecm.pm | 223 +----------------------------------------
2 files changed, 213 insertions(+), 220 deletions(-)
diff --git a/data/PVE/API2/ClusterConfig.pm b/data/PVE/API2/ClusterConfig.pm
index 46db3da..fa01022 100644
--- a/data/PVE/API2/ClusterConfig.pm
+++ b/data/PVE/API2/ClusterConfig.pm
@@ -76,6 +76,216 @@ __PACKAGE__->register_method({
return PVE::RESTHandler::hash_to_array($nodelist, 'node');
}});
+# lock method to ensure local and cluster wide atomicity
+# if we're a single node cluster just lock locally, we have no other cluster
+# node which we could contend with, else also acquire a cluster wide lock
+my $config_change_lock = sub {
+ my ($code) = @_;
+
+ my $local_lock_fn = "/var/lock/pvecm.lock";
+ PVE::Tools::lock_file($local_lock_fn, 10, sub {
+ PVE::Cluster::cfs_update(1);
+ my $members = PVE::Cluster::get_members();
+ if (scalar(keys %$members) > 1) {
+ return PVE::Cluster::cfs_lock_file('corosync.conf', 10, $code);
+ } else {
+ return $code->();
+ }
+ });
+};
+
+
+__PACKAGE__->register_method ({
+ name => 'addnode',
+ path => 'nodes',
+ method => 'POST',
+ protected => 1,
+ description => "Adds a node to the cluster configuration.",
+ parameters => {
+ additionalProperties => 0,
+ properties => {
+ node => PVE::JSONSchema::get_standard_option('pve-node'),
+ nodeid => {
+ type => 'integer',
+ description => "Node id for this node.",
+ minimum => 1,
+ optional => 1,
+ },
+ votes => {
+ type => 'integer',
+ description => "Number of votes for this node",
+ minimum => 0,
+ optional => 1,
+ },
+ force => {
+ type => 'boolean',
+ description => "Do not throw error if node already exists.",
+ optional => 1,
+ },
+ ring0_addr => {
+ type => 'string', format => 'address',
+ description => "Hostname (or IP) of the corosync ring0 address of this node.".
+ " Defaults to nodes hostname.",
+ optional => 1,
+ },
+ ring1_addr => {
+ type => 'string', format => 'address',
+ description => "Hostname (or IP) of the corosync ring1 address, this".
+ " needs an valid bindnet1_addr.",
+ optional => 1,
+ },
+ },
+ },
+ returns => { type => 'null' },
+ code => sub {
+ my ($param) = @_;
+
+ PVE::Cluster::check_cfs_quorum();
+
+ my $code = sub {
+ my $conf = PVE::Cluster::cfs_read_file("corosync.conf");
+ my $nodelist = PVE::Corosync::nodelist($conf);
+ my $totem_cfg = PVE::Corosync::totem_config($conf);
+
+ my $name = $param->{node};
+
+ # ensure we do not reuse an address, that can crash the whole cluster!
+ my $check_duplicate_addr = sub {
+ my $addr = shift;
+ return if !defined($addr);
+
+ while (my ($k, $v) = each %$nodelist) {
+ next if $k eq $name; # allows re-adding a node if force is set
+ if ($v->{ring0_addr} eq $addr || ($v->{ring1_addr} && $v->{ring1_addr} eq $addr)) {
+ die "corosync: address '$addr' already defined by node '$k'\n";
+ }
+ }
+ };
+
+ &$check_duplicate_addr($param->{ring0_addr});
+ &$check_duplicate_addr($param->{ring1_addr});
+
+ $param->{ring0_addr} = $name if !$param->{ring0_addr};
+
+ die "corosync: using 'ring1_addr' parameter needs a configured ring 1 interface!\n"
+ if $param->{ring1_addr} && !defined($totem_cfg->{interface}->{1});
+
+ die "corosync: ring 1 interface configured but 'ring1_addr' parameter not defined!\n"
+ if defined($totem_cfg->{interface}->{1}) && !defined($param->{ring1_addr});
+
+ if (defined(my $res = $nodelist->{$name})) {
+ $param->{nodeid} = $res->{nodeid} if !$param->{nodeid};
+ $param->{votes} = $res->{quorum_votes} if !defined($param->{votes});
+
+ if ($res->{quorum_votes} == $param->{votes} &&
+ $res->{nodeid} == $param->{nodeid} && $param->{force}) {
+ print "forcing overwrite of configured node '$name'\n";
+ } else {
+ die "can't add existing node '$name'\n";
+ }
+ } elsif (!$param->{nodeid}) {
+ my $nodeid = 1;
+
+ while(1) {
+ my $found = 0;
+ foreach my $v (values %$nodelist) {
+ if ($v->{nodeid} eq $nodeid) {
+ $found = 1;
+ $nodeid++;
+ last;
+ }
+ }
+ last if !$found;
+ };
+
+ $param->{nodeid} = $nodeid;
+ }
+
+ $param->{votes} = 1 if !defined($param->{votes});
+
+ PVE::Cluster::gen_local_dirs($name);
+
+ eval { PVE::Cluster::ssh_merge_keys(); };
+ warn $@ if $@;
+
+ $nodelist->{$name} = {
+ ring0_addr => $param->{ring0_addr},
+ nodeid => $param->{nodeid},
+ name => $name,
+ };
+ $nodelist->{$name}->{ring1_addr} = $param->{ring1_addr} if $param->{ring1_addr};
+ $nodelist->{$name}->{quorum_votes} = $param->{votes} if $param->{votes};
+
+ PVE::Corosync::update_nodelist($conf, $nodelist);
+ };
+
+ $config_change_lock->($code);
+ die $@ if $@;
+
+ return undef;
+ }});
+
+
+__PACKAGE__->register_method ({
+ name => 'delnode',
+ path => 'nodes',
+ method => 'DELETE',
+ protected => 1,
+ description => "Removes a node from the cluster configuration.",
+ parameters => {
+ additionalProperties => 0,
+ properties => {
+ node => {
+ type => 'string',
+ description => "Hostname or IP of the corosync ring0 address of this node.",
+ },
+ },
+ },
+ returns => { type => 'null' },
+ code => sub {
+ my ($param) = @_;
+
+ my $local_node = PVE::INotify::nodename();
+ die "Cannot delete myself from cluster!\n" if $param->{node} eq $local_node;
+
+ PVE::Cluster::check_cfs_quorum();
+
+ my $code = sub {
+ my $conf = PVE::Cluster::cfs_read_file("corosync.conf");
+ my $nodelist = PVE::Corosync::nodelist($conf);
+
+ my $node;
+ my $nodeid;
+
+ foreach my $tmp_node (keys %$nodelist) {
+ my $d = $nodelist->{$tmp_node};
+ my $ring0_addr = $d->{ring0_addr};
+ my $ring1_addr = $d->{ring1_addr};
+ if (($tmp_node eq $param->{node}) ||
+ (defined($ring0_addr) && ($ring0_addr eq $param->{node})) ||
+ (defined($ring1_addr) && ($ring1_addr eq $param->{node}))) {
+ $node = $tmp_node;
+ $nodeid = $d->{nodeid};
+ last;
+ }
+ }
+
+ die "Node/IP: $param->{node} is not a known host of the cluster.\n"
+ if !defined($node);
+
+ delete $nodelist->{$node};
+
+ PVE::Corosync::update_nodelist($conf, $nodelist);
+
+ PVE::Tools::run_command(['corosync-cfgtool','-k', $nodeid]) if defined($nodeid);
+ };
+
+ $config_change_lock->($code);
+ die $@ if $@;
+
+ return undef;
+ }});
+
__PACKAGE__->register_method({
name => 'totem',
path => 'totem',
diff --git a/data/PVE/CLI/pvecm.pm b/data/PVE/CLI/pvecm.pm
index 6d0d704..a92f831 100755
--- a/data/PVE/CLI/pvecm.pm
+++ b/data/PVE/CLI/pvecm.pm
@@ -11,6 +11,7 @@ use PVE::Cluster;
use PVE::INotify;
use PVE::JSONSchema;
use PVE::CLIHandler;
+use PVE::API2::ClusterConfig;
use PVE::Corosync;
use base qw(PVE::CLIHandler);
@@ -58,23 +59,6 @@ sub backup_database {
}
}
-# lock method to ensure local and cluster wide atomicity
-# if we're a single node cluster just lock locally, we have no other cluster
-# node which we could contend with, else also acquire a cluster wide lock
-my $config_change_lock = sub {
- my ($code) = @_;
-
- my $local_lock_fn = "/var/lock/pvecm.lock";
- PVE::Tools::lock_file($local_lock_fn, 10, sub {
- PVE::Cluster::cfs_update(1);
- my $members = PVE::Cluster::get_members();
- if (scalar(keys %$members) > 1) {
- return PVE::Cluster::cfs_lock_file('corosync.conf', 10, $code);
- } else {
- return $code->();
- }
- });
-};
__PACKAGE__->register_method ({
name => 'keygen',
@@ -263,207 +247,6 @@ _EOD
}});
__PACKAGE__->register_method ({
- name => 'addnode',
- path => 'addnode',
- method => 'PUT',
- description => "Adds a node to the cluster configuration.",
- parameters => {
- additionalProperties => 0,
- properties => {
- node => PVE::JSONSchema::get_standard_option('pve-node'),
- nodeid => {
- type => 'integer',
- description => "Node id for this node.",
- minimum => 1,
- optional => 1,
- },
- votes => {
- type => 'integer',
- description => "Number of votes for this node",
- minimum => 0,
- optional => 1,
- },
- force => {
- type => 'boolean',
- description => "Do not throw error if node already exists.",
- optional => 1,
- },
- ring0_addr => {
- type => 'string', format => 'address',
- description => "Hostname (or IP) of the corosync ring0 address of this node.".
- " Defaults to nodes hostname.",
- optional => 1,
- },
- ring1_addr => {
- type => 'string', format => 'address',
- description => "Hostname (or IP) of the corosync ring1 address, this".
- " needs an valid bindnet1_addr.",
- optional => 1,
- },
- },
- },
- returns => { type => 'null' },
-
- code => sub {
- my ($param) = @_;
-
- if (!$param->{force} && (-t STDIN || -t STDOUT)) {
- die "error: `addnode` should not get called interactively!\nUse ".
- "`pvecm add <cluster-node>` to add a node to a cluster!\n";
- }
-
- PVE::Cluster::check_cfs_quorum();
-
- my $code = sub {
- my $conf = PVE::Cluster::cfs_read_file("corosync.conf");
- my $nodelist = PVE::Corosync::nodelist($conf);
- my $totem_cfg = PVE::Corosync::totem_config($conf);
-
- my $name = $param->{node};
-
- # ensure we do not reuse an address, that can crash the whole cluster!
- my $check_duplicate_addr = sub {
- my $addr = shift;
- return if !defined($addr);
-
- while (my ($k, $v) = each %$nodelist) {
- next if $k eq $name; # allows re-adding a node if force is set
- if ($v->{ring0_addr} eq $addr || ($v->{ring1_addr} && $v->{ring1_addr} eq $addr)) {
- die "corosync: address '$addr' already defined by node '$k'\n";
- }
- }
- };
-
- &$check_duplicate_addr($param->{ring0_addr});
- &$check_duplicate_addr($param->{ring1_addr});
-
- $param->{ring0_addr} = $name if !$param->{ring0_addr};
-
- die "corosync: using 'ring1_addr' parameter needs a configured ring 1 interface!\n"
- if $param->{ring1_addr} && !defined($totem_cfg->{interface}->{1});
-
- die "corosync: ring 1 interface configured but 'ring1_addr' parameter not defined!\n"
- if defined($totem_cfg->{interface}->{1}) && !defined($param->{ring1_addr});
-
- if (defined(my $res = $nodelist->{$name})) {
- $param->{nodeid} = $res->{nodeid} if !$param->{nodeid};
- $param->{votes} = $res->{quorum_votes} if !defined($param->{votes});
-
- if ($res->{quorum_votes} == $param->{votes} &&
- $res->{nodeid} == $param->{nodeid}) {
- print "node $name already defined\n";
- if ($param->{force}) {
- exit (0);
- } else {
- exit (-1);
- }
- } else {
- die "can't add existing node\n";
- }
- } elsif (!$param->{nodeid}) {
- my $nodeid = 1;
-
- while(1) {
- my $found = 0;
- foreach my $v (values %$nodelist) {
- if ($v->{nodeid} eq $nodeid) {
- $found = 1;
- $nodeid++;
- last;
- }
- }
- last if !$found;
- };
-
- $param->{nodeid} = $nodeid;
- }
-
- $param->{votes} = 1 if !defined($param->{votes});
-
- PVE::Cluster::gen_local_dirs($name);
-
- eval { PVE::Cluster::ssh_merge_keys(); };
- warn $@ if $@;
-
- $nodelist->{$name} = {
- ring0_addr => $param->{ring0_addr},
- nodeid => $param->{nodeid},
- name => $name,
- };
- $nodelist->{$name}->{ring1_addr} = $param->{ring1_addr} if $param->{ring1_addr};
- $nodelist->{$name}->{quorum_votes} = $param->{votes} if $param->{votes};
-
- PVE::Corosync::update_nodelist($conf, $nodelist);
- };
-
- $config_change_lock->($code);
- die $@ if $@;
-
- exit (0);
- }});
-
-
-__PACKAGE__->register_method ({
- name => 'delnode',
- path => 'delnode',
- method => 'PUT',
- description => "Removes a node to the cluster configuration.",
- parameters => {
- additionalProperties => 0,
- properties => {
- node => {
- type => 'string',
- description => "Hostname or IP of the corosync ring0 address of this node.",
- },
- },
- },
- returns => { type => 'null' },
-
- code => sub {
- my ($param) = @_;
-
- my $local_node = PVE::INotify::nodename();
- die "Cannot delete myself from cluster!\n" if $param->{node} eq $local_node;
-
- PVE::Cluster::check_cfs_quorum();
-
- my $code = sub {
- my $conf = PVE::Cluster::cfs_read_file("corosync.conf");
- my $nodelist = PVE::Corosync::nodelist($conf);
-
- my $node;
- my $nodeid;
-
- foreach my $tmp_node (keys %$nodelist) {
- my $d = $nodelist->{$tmp_node};
- my $ring0_addr = $d->{ring0_addr};
- my $ring1_addr = $d->{ring1_addr};
- if (($tmp_node eq $param->{node}) ||
- (defined($ring0_addr) && ($ring0_addr eq $param->{node})) ||
- (defined($ring1_addr) && ($ring1_addr eq $param->{node}))) {
- $node = $tmp_node;
- $nodeid = $d->{nodeid};
- last;
- }
- }
-
- die "Node/IP: $param->{node} is not a known host of the cluster.\n"
- if !defined($node);
-
- delete $nodelist->{$node};
-
- PVE::Corosync::update_nodelist($conf, $nodelist);
-
- run_command(['corosync-cfgtool','-k', $nodeid]) if defined($nodeid);
- };
-
- $config_change_lock->($code);
- die $@ if $@;
-
- return undef;
- }});
-
-__PACKAGE__->register_method ({
name => 'add',
path => 'add',
method => 'PUT',
@@ -885,8 +668,8 @@ our $cmddef = {
keygen => [ __PACKAGE__, 'keygen', ['filename']],
create => [ __PACKAGE__, 'create', ['clustername']],
add => [ __PACKAGE__, 'add', ['hostname']],
- addnode => [ __PACKAGE__, 'addnode', ['node']],
- delnode => [ __PACKAGE__, 'delnode', ['node']],
+ addnode => [ 'PVE::API2::ClusterConfig', 'addnode', ['node']],
+ delnode => [ 'PVE::API2::ClusterConfig', 'delnode', ['node']],
status => [ __PACKAGE__, 'status' ],
nodes => [ __PACKAGE__, 'nodes' ],
expected => [ __PACKAGE__, 'expected', ['expected']],
--
2.11.0
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