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Fixes #37761 - use ProxyPass and upgrade=websocket where possible #1185

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Sep 18, 2024
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Fixes #37761 - use ProxyPass and upgrade=websocket where possible #1185

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32 changes: 21 additions & 11 deletions manifests/config/apache.pp
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Original file line number Diff line number Diff line change
Expand Up @@ -167,8 +167,9 @@
if $suburi {
$custom_fragment = undef
} else {
# mod_env and mod_expires are required by configuration in _assets.conf.erb
# mod_env, mod_expires and mod_rewrite are required by configuration in _assets.conf.erb
include apache::mod::env
include apache::mod::rewrite
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# apache::mod::expires pulls in a config file we don't want, like apache::default_mods
# It uses ensure_resource to be compatible with both $apache::default_mods set to true and false
include apache
Expand All @@ -182,8 +183,23 @@
order => '03',
}

include apache::mod::proxy_wstunnel
$websockets_backend = regsubst($_proxy_backend, 'http://', 'ws://')
# mod_proxy supports "ProxyPass ... upgrade=websocket" since 2.4.47
# EL8: 2.4.37 / EL9: 2.4.62 / Debian11: 2.4.62 / Ubuntu20.04: 2.4.41 / Ubuntu22.04: 2.4.52
$proxy_upgrade_websocket = !($facts['os']['family'] == 'RedHat' and $facts['os']['release']['major'] == '8') and !($facts['os']['name'] == 'Ubuntu' and $facts['os']['release']['major'] == '20.04')
if $proxy_upgrade_websocket {
$vhost_rewrites = []
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Should this be undef instead?

$_proxy_params = $proxy_params + { 'upgrade' => 'websocket' }
} else {
include apache::mod::proxy_wstunnel
$websockets_backend = regsubst($_proxy_backend, 'http://', 'ws://')
$websockets_rewrite = {
'comment' => 'Upgrade Websocket connections',
'rewrite_cond' => '%{HTTP:Upgrade} =websocket [NC]',
'rewrite_rule' => "/(.*) ${websockets_backend}\$1 [P,L]",
}
$vhost_rewrites = [$websockets_rewrite]
$_proxy_params = $proxy_params
}

$vhost_http_request_headers = [
'set X_FORWARDED_PROTO "http"',
Expand All @@ -209,15 +225,9 @@
'no_proxy_uris' => $_proxy_no_proxy_uris,
'path' => pick($suburi, '/'),
'url' => $_proxy_backend,
'params' => $proxy_params,
'params' => $_proxy_params,
},
'rewrites' => [
{
'comment' => 'Upgrade Websocket connections',
'rewrite_cond' => '%{HTTP:Upgrade} =websocket [NC]',
'rewrite_rule' => "/(.*) ${websockets_backend}\$1 [P,L]",
},
],
'rewrites' => $vhost_rewrites,
}

$vhost_https_request_headers = [
Expand Down
11 changes: 8 additions & 3 deletions manifests/plugin/remote_execution/cockpit.pp
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Expand Up @@ -72,11 +72,16 @@
require => Class['foreman::database'],
}
} else {
include apache::mod::rewrite
include apache::mod::proxy_wstunnel
include apache::mod::proxy_http
if $foreman::config::apache::proxy_upgrade_websocket {
$_apache_template = 'cockpit-apache-ssl.conf.erb'
} else {
include apache::mod::rewrite
include apache::mod::proxy_wstunnel
$_apache_template = 'cockpit-apache-ssl-rewrite.conf.erb'
}
foreman::config::apache::fragment { 'cockpit':
ssl_content => template('foreman/cockpit-apache-ssl.conf.erb'),
ssl_content => template("foreman/${_apache_template}"),
}

foreman_config_entry { 'remote_execution_cockpit_url':
Expand Down
62 changes: 43 additions & 19 deletions spec/classes/foreman_config_apache_spec.rb
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Expand Up @@ -15,15 +15,28 @@
end
end

let(:proxy_pass_params) do
if (facts[:os]['family'] == 'RedHat' && facts[:os]['release']['major'] == '8') ||
(facts[:os]['name'] == 'Ubuntu' && facts[:os]['release']['major'] == '20.04')
{ 'retry' => '0' }
else
{ 'retry' => '0', 'upgrade' => 'websocket' }
end
end


it { should compile.with_all_deps }

it 'should include apache with modules' do
should contain_class('apache::mod::env')
should contain_apache__mod('expires')
should contain_class('apache::mod::proxy')
should contain_class('apache::mod::proxy_http')
should contain_class('apache::mod::proxy_wstunnel')
should contain_class('apache::mod::rewrite')
if (facts[:os]['family'] == 'RedHat' && facts[:os]['release']['major'] == '8') ||
(facts[:os]['name'] == 'Ubuntu' && facts[:os]['release']['major'] == '20.04')
should contain_class('apache::mod::proxy_wstunnel')
end
end

it 'does not manage the docroot' do
Expand Down Expand Up @@ -79,15 +92,19 @@
"no_proxy_uris" => ['/pulp', '/pub', '/icons', '/images', '/server-status', '/webpack', '/assets'],
"path" => '/',
"url" => 'unix:///run/foreman.sock|http://foreman/',
"params" => { "retry" => '0' },
"params" => proxy_pass_params,
)
.with_rewrites([
{
'comment' => 'Upgrade Websocket connections',
'rewrite_cond' => '%{HTTP:Upgrade} =websocket [NC]',
'rewrite_rule' => '/(.*) unix:///run/foreman.sock|ws://foreman/$1 [P,L]',
},
])
if (facts[:os]['family'] == 'RedHat' && facts[:os]['release']['major'] == '8') ||
(facts[:os]['name'] == 'Ubuntu' && facts[:os]['release']['major'] == '20.04')
should contain_apache__vhost('foreman')
.with_rewrites([
{
'comment' => 'Upgrade Websocket connections',
'rewrite_cond' => '%{HTTP:Upgrade} =websocket [NC]',
'rewrite_rule' => '/(.*) unix:///run/foreman.sock|ws://foreman/$1 [P,L]',
},
])
end
end

it 'does not configure the HTTPS vhost' do
Expand All @@ -109,8 +126,11 @@ class { 'apache':
should contain_apache__mod('expires')
should contain_class('apache::mod::proxy')
should contain_class('apache::mod::proxy_http')
should contain_class('apache::mod::proxy_wstunnel')
should contain_class('apache::mod::rewrite')
if (facts[:os]['family'] == 'RedHat' && facts[:os]['release']['major'] == '8') ||
(facts[:os]['name'] == 'Ubuntu' && facts[:os]['release']['major'] == '20.04')
should contain_class('apache::mod::proxy_wstunnel')
end
end
end

Expand Down Expand Up @@ -152,7 +172,7 @@ class { 'apache':
"no_proxy_uris" => ['/pulp', '/pub', '/icons', '/images', '/server-status'],
"path" => '/',
"url" => 'unix:///run/foreman.sock|http://foreman/',
"params" => { "retry" => '0' },
"params" => proxy_pass_params,
)
}
end
Expand Down Expand Up @@ -229,15 +249,19 @@ class { 'apache':
"no_proxy_uris" => ['/pulp', '/pub', '/icons', '/images', '/server-status', '/webpack', '/assets'],
"path" => '/',
"url" => 'unix:///run/foreman.sock|http://foreman/',
"params" => { "retry" => '0' },
"params" => proxy_pass_params,
)
.with_rewrites([
{
'comment' => 'Upgrade Websocket connections',
'rewrite_cond' => '%{HTTP:Upgrade} =websocket [NC]',
'rewrite_rule' => '/(.*) unix:///run/foreman.sock|ws://foreman/$1 [P,L]',
},
])
if (facts[:os]['family'] == 'RedHat' && facts[:os]['release']['major'] == '8') ||
(facts[:os]['name'] == 'Ubuntu' && facts[:os]['release']['major'] == '20.04')
should contain_apache__vhost('foreman-ssl')
.with_rewrites([
{
'comment' => 'Upgrade Websocket connections',
'rewrite_cond' => '%{HTTP:Upgrade} =websocket [NC]',
'rewrite_rule' => '/(.*) unix:///run/foreman.sock|ws://foreman/$1 [P,L]',
},
])
end
end

describe 'with vhost and ssl, no CRL explicitly' do
Expand Down
15 changes: 12 additions & 3 deletions spec/classes/plugin/remote_execution_cockpit_spec.rb
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Expand Up @@ -65,13 +65,22 @@ class {'foreman':
end

it 'configures apache' do
is_expected.to contain_class('apache::mod::proxy_wstunnel')
is_expected.to contain_class('apache::mod::proxy_http')
is_expected.to contain_foreman__config__apache__fragment('cockpit')
.without_content
.with_ssl_content(%r{^<Location /webcon>$})
.with_ssl_content(%r{^ RewriteRule /webcon/\(\.\*\) ws://127\.0\.0\.1:19090/webcon/\$1 \[P\]$})
.with_ssl_content(%r{^ RewriteRule /webcon/\(\.\*\) http://127\.0\.0\.1:19090/webcon/\$1 \[P\]$})
if (facts[:os]['family'] == 'RedHat' && facts[:os]['release']['major'] == '8') ||
(facts[:os]['name'] == 'Ubuntu' && facts[:os]['release']['major'] == '20.04')
is_expected.to contain_class('apache::mod::rewrite')
is_expected.to contain_class('apache::mod::proxy_wstunnel')
is_expected.to contain_foreman__config__apache__fragment('cockpit')
.with_ssl_content(%r{^ RewriteRule /webcon/\(\.\*\) ws://127\.0\.0\.1:19090/webcon/\$1 \[P\]$})
.with_ssl_content(%r{^ ProxyPass http://127\.0\.0\.1:19090/webcon$})
else
is_expected.to contain_foreman__config__apache__fragment('cockpit')
.without_ssl_content(%r{RewriteRule})
.with_ssl_content(%r{^ ProxyPass http://127\.0\.0\.1:19090/webcon upgrade=websocket$})
end
end
end

Expand Down
11 changes: 11 additions & 0 deletions templates/cockpit-apache-ssl-rewrite.conf.erb
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Original file line number Diff line number Diff line change
@@ -0,0 +1,11 @@
### File managed with puppet ###

<Location <%= @cockpit_path %>>
ProxyPreserveHost On

RewriteEngine On
RewriteCond %{HTTP:Upgrade} =websocket [NC]
RewriteRule <%= @cockpit_path %>/(.*) ws://<%= @cockpit_host %>:<%= @cockpit_port %><%= @cockpit_path %>/$1 [P]

ProxyPass http://<%= @cockpit_host %>:<%= @cockpit_port %><%= @cockpit_path %>
</Location>
7 changes: 1 addition & 6 deletions templates/cockpit-apache-ssl.conf.erb
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Expand Up @@ -2,10 +2,5 @@

<Location <%= @cockpit_path %>>
ProxyPreserveHost On

RewriteEngine On
RewriteCond %{HTTP:Upgrade} =websocket [NC]
RewriteRule <%= @cockpit_path %>/(.*) ws://<%= @cockpit_host %>:<%= @cockpit_port %><%= @cockpit_path %>/$1 [P]
RewriteCond %{HTTP:Upgrade} !=websocket [NC]
RewriteRule <%= @cockpit_path %>/(.*) http://<%= @cockpit_host %>:<%= @cockpit_port %><%= @cockpit_path %>/$1 [P]
ProxyPass http://<%= @cockpit_host %>:<%= @cockpit_port %><%= @cockpit_path %> upgrade=websocket
</Location>
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