diff --git a/.buildkite/pull_request_pipeline.yml b/.buildkite/pull_request_pipeline.yml
index 0b4d6b46a5c..f9a349e60ba 100644
--- a/.buildkite/pull_request_pipeline.yml
+++ b/.buildkite/pull_request_pipeline.yml
@@ -123,6 +123,26 @@ steps:
       manual:
         allowed: true
 
+  - label: "Observability SRE container smoke test"
+    key: "observability-sre-container-smoke-test"
+    agents:
+      provider: gcp
+      imageProject: elastic-images-prod
+      image: family/platform-ingest-logstash-ubuntu-2204
+      machineType: "n2-standard-4"
+      diskSizeGb: 64
+    retry:
+      automatic:
+        - limit: 3
+    command: |
+      set -euo pipefail
+      source .buildkite/scripts/common/vm-agent.sh
+      # TODO: Use https://github.com/elastic/logstash/pull/17311 to compute QUALIFIED_VERSION once merged
+      QUALIFIED_VERSION="8.19.0-SNAPSHOT"
+      ./gradlew --stacktrace artifactDockerObservabilitySRE
+      docker run docker.elastic.co/logstash/logstash-observability-sre:$${QUALIFIED_VERSION} \
+        logstash -e 'input { generator { count => 3 } } output { stdout { codec => rubydebug } }'
+
   - label: ":lab_coat: Integration Tests - FIPS mode / part 1"
     key: "integration-tests-fips-part-1"
     agents:
diff --git a/x-pack/distributions/internal/observabilitySRE/plugin-allow-list.txt b/x-pack/distributions/internal/observabilitySRE/plugin-allow-list.txt
index 44da659f95d..ee60a7bcc4d 100644
--- a/x-pack/distributions/internal/observabilitySRE/plugin-allow-list.txt
+++ b/x-pack/distributions/internal/observabilitySRE/plugin-allow-list.txt
@@ -1,6 +1,7 @@
 logstash-codec-json
 logstash-codec-multiline
 logstash-codec-plain
+logstash-codec-rubydebug
 logstash-filter-age
 logstash-filter-date
 logstash-filter-drop
@@ -9,7 +10,9 @@ logstash-filter-grok
 logstash-filter-json
 logstash-filter-mutate
 logstash-input-beats
+logstash-input-generator
 logstash-input-pipeline
 logstash-output-elasticsearch
 logstash-output-pipeline
+logstash-output-stdout
 logstash-patterns-core