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-rw-r--r--app/assets/javascripts/performance_bar/components/performance_bar_app.vue7
-rw-r--r--changelogs/unreleased/an-peek-jaeger.yml5
-rw-r--r--config/initializers/peek.rb1
-rw-r--r--lib/gitlab/tracing.rb19
-rw-r--r--lib/peek/views/tracing.rb13
-rw-r--r--spec/lib/gitlab/tracing_spec.rb66
6 files changed, 111 insertions, 0 deletions
diff --git a/app/assets/javascripts/performance_bar/components/performance_bar_app.vue b/app/assets/javascripts/performance_bar/components/performance_bar_app.vue
index 74faa35358d..1ec2784cc5a 100644
--- a/app/assets/javascripts/performance_bar/components/performance_bar_app.vue
+++ b/app/assets/javascripts/performance_bar/components/performance_bar_app.vue
@@ -134,6 +134,13 @@ export default {
>ms / <span title="Invoke Count">{{ currentRequest.details.gc.invokes }}</span> gc
</span>
</div>
+ <div
+ v-if="currentRequest.details && currentRequest.details.tracing"
+ id="peek-view-trace"
+ class="view"
+ >
+ <a :href="currentRequest.details.tracing.tracing_url"> trace </a>
+ </div>
<request-selector
v-if="currentRequest"
:current-request="currentRequest"
diff --git a/changelogs/unreleased/an-peek-jaeger.yml b/changelogs/unreleased/an-peek-jaeger.yml
new file mode 100644
index 00000000000..8659ee4f9e0
--- /dev/null
+++ b/changelogs/unreleased/an-peek-jaeger.yml
@@ -0,0 +1,5 @@
+---
+title: Provide a performance bar link to the Jaeger UI
+merge_request: 24902
+author:
+type: other
diff --git a/config/initializers/peek.rb b/config/initializers/peek.rb
index a6f43415ec5..e051e5c68c4 100644
--- a/config/initializers/peek.rb
+++ b/config/initializers/peek.rb
@@ -19,6 +19,7 @@ Peek.into Peek::Views::Gitaly
Peek.into Peek::Views::Rblineprof
Peek.into Peek::Views::Redis
Peek.into Peek::Views::GC
+Peek.into Peek::Views::Tracing if Gitlab::Tracing.tracing_url_enabled?
# rubocop:disable Naming/ClassAndModuleCamelCase
class PEEK_DB_CLIENT
diff --git a/lib/gitlab/tracing.rb b/lib/gitlab/tracing.rb
index 3c4db42ac06..0d9b0be1c8e 100644
--- a/lib/gitlab/tracing.rb
+++ b/lib/gitlab/tracing.rb
@@ -13,5 +13,24 @@ module Gitlab
def self.connection_string
ENV['GITLAB_TRACING']
end
+
+ def self.tracing_url_template
+ ENV['GITLAB_TRACING_URL']
+ end
+
+ def self.tracing_url_enabled?
+ enabled? && tracing_url_template.present?
+ end
+
+ # This will provide a link into the distributed tracing for the current trace,
+ # if it has been captured.
+ def self.tracing_url
+ return unless tracing_url_enabled?
+
+ tracing_url_template % {
+ correlation_id: Gitlab::CorrelationId.current_id.to_s,
+ service: Gitlab.process_name
+ }
+ end
end
end
diff --git a/lib/peek/views/tracing.rb b/lib/peek/views/tracing.rb
new file mode 100644
index 00000000000..0de32a8fdda
--- /dev/null
+++ b/lib/peek/views/tracing.rb
@@ -0,0 +1,13 @@
+# frozen_string_literal: true
+
+module Peek
+ module Views
+ class Tracing < View
+ def results
+ {
+ tracing_url: Gitlab::Tracing.tracing_url
+ }
+ end
+ end
+ end
+end
diff --git a/spec/lib/gitlab/tracing_spec.rb b/spec/lib/gitlab/tracing_spec.rb
new file mode 100644
index 00000000000..2cddc895026
--- /dev/null
+++ b/spec/lib/gitlab/tracing_spec.rb
@@ -0,0 +1,66 @@
+# frozen_string_literal: true
+
+require 'fast_spec_helper'
+require 'rspec-parameterized'
+
+describe Gitlab::Tracing do
+ using RSpec::Parameterized::TableSyntax
+
+ describe '.enabled?' do
+ where(:connection_string, :enabled_state) do
+ nil | false
+ "" | false
+ "opentracing://jaeger" | true
+ end
+
+ with_them do
+ it 'should return the correct state for .enabled?' do
+ expect(described_class).to receive(:connection_string).and_return(connection_string)
+
+ expect(described_class.enabled?).to eq(enabled_state)
+ end
+ end
+ end
+
+ describe '.tracing_url_enabled?' do
+ where(:enabled?, :tracing_url_template, :tracing_url_enabled_state) do
+ false | nil | false
+ false | "" | false
+ false | "http://localhost" | false
+ true | nil | false
+ true | "" | false
+ true | "http://localhost" | true
+ end
+
+ with_them do
+ it 'should return the correct state for .tracing_url_enabled?' do
+ expect(described_class).to receive(:enabled?).and_return(enabled?)
+ allow(described_class).to receive(:tracing_url_template).and_return(tracing_url_template)
+
+ expect(described_class.tracing_url_enabled?).to eq(tracing_url_enabled_state)
+ end
+ end
+ end
+
+ describe '.tracing_url' do
+ where(:tracing_url_enabled?, :tracing_url_template, :correlation_id, :process_name, :tracing_url) do
+ false | "https://localhost" | "123" | "web" | nil
+ true | "https://localhost" | "123" | "web" | "https://localhost"
+ true | "https://localhost?service=%{service}" | "123" | "web" | "https://localhost?service=web"
+ true | "https://localhost?c=%{correlation_id}" | "123" | "web" | "https://localhost?c=123"
+ true | "https://localhost?c=%{correlation_id}&s=%{service}" | "123" | "web" | "https://localhost?c=123&s=web"
+ true | "https://localhost?c=%{correlation_id}" | nil | "web" | "https://localhost?c="
+ end
+
+ with_them do
+ it 'should return the correct state for .tracing_url' do
+ expect(described_class).to receive(:tracing_url_enabled?).and_return(tracing_url_enabled?)
+ allow(described_class).to receive(:tracing_url_template).and_return(tracing_url_template)
+ allow(Gitlab::CorrelationId).to receive(:current_id).and_return(correlation_id)
+ allow(Gitlab).to receive(:process_name).and_return(process_name)
+
+ expect(described_class.tracing_url).to eq(tracing_url)
+ end
+ end
+ end
+end