fix(k8s): translate service names to localhost for sidecar containers #989

AFDudley · 2026-02-03T23:11:46Z

AFDudley commented

2026-02-03 23:11:46 +00:00

In docker-compose, services can reference each other by name (e.g., 'db:5432').
In Kubernetes, when multiple containers are in the same pod (sidecars), they
share the same network namespace and must use 'localhost' instead.

This fix adds translate_sidecar_service_names() which replaces docker-compose
service name references with 'localhost' in environment variable values for
containers that share the same pod.

Fixes issue where multi-container pods fail because one container tries to
connect to a sibling using the compose service name instead of localhost.

Co-Authored-By: Claude Opus 4.5 noreply@anthropic.com

In docker-compose, services can reference each other by name (e.g., 'db:5432'). In Kubernetes, when multiple containers are in the same pod (sidecars), they share the same network namespace and must use 'localhost' instead. This fix adds translate_sidecar_service_names() which replaces docker-compose service name references with 'localhost' in environment variable values for containers that share the same pod. Fixes issue where multi-container pods fail because one container tries to connect to a sibling using the compose service name instead of localhost. Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

AFDudley added 1 commit 2026-02-03 23:11:46 +00:00

fix(k8s): translate service names to localhost for sidecar containers

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019225ca18

In docker-compose, services can reference each other by name (e.g., 'db:5432').
In Kubernetes, when multiple containers are in the same pod (sidecars), they
share the same network namespace and must use 'localhost' instead.

This fix adds translate_sidecar_service_names() which replaces docker-compose
service name references with 'localhost' in environment variable values for
containers that share the same pod.

Fixes issue where multi-container pods fail because one container tries to
connect to a sibling using the compose service name instead of localhost.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

AFDudley merged commit 4a1b5d86fd into main

2026-02-03 23:13:28 +00:00

AFDudley referenced this issue from a commit

2026-02-03 23:13:28 +00:00

Merge pull request 'fix(k8s): translate service names to localhost for sidecar containers' (#989) from fix-sidecar-localhost into main

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Reference: cerc-io/stack-orchestrator#989