Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

Accelerate networking with bypass4netns #326

Merged
merged 1 commit into from
Apr 10, 2024
Merged

Accelerate networking with bypass4netns #326

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
11 changes: 11 additions & 0 deletions Makefile
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -36,6 +36,13 @@ NODE_SHELL := $(COMPOSE) exec \
-e U7S_NODE_IP=$(U7S_NODE_IP) \
$(NODE_SERVICE_NAME)

ifeq ($(CONTAINER_ENGINE),nerdctl)
ifneq (,$(wildcard $(XDG_RUNTIME_DIR)/bypass4netnsd.sock))
export U7S_B4NN := true
export U7S_B4NN_IGNORE_SUBNETS := ["10.96.0.0/16", "10.244.0.0/16", "$(U7S_NODE_SUBNET)"]
endif
endif

.PHONY: help
help:
@echo '# Bootstrap a cluster'
Expand Down Expand Up @@ -64,6 +71,10 @@ help:
check-preflight:
./Makefile.d/check-preflight.sh

.PHONY: render
render: check-preflight
$(COMPOSE) config

.PHONY: up
up: check-preflight
$(COMPOSE) up --build -d
Expand Down
11 changes: 11 additions & 0 deletions README.md
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -119,5 +119,16 @@ To change the container engine, set `export CONTAINER_ENGINE=podman` or `export
- Some [volume drivers](https://kubernetes.io/docs/concepts/storage/volumes/) such as `nfs` do not work.

## Advanced topics
### Network
When `CONTAINER_ENGINE` is set to `nerdctl`, [bypass4netns](https://github.com/rootless-containers/bypass4netns) can be enabled for accelerating `connect(2)` syscalls.
The acceleration currently does not apply to VXLAN packets.

```bash
containerd-rootless-setuptool.sh install-bypass4netnsd
export CONTAINER_ENGINE=nerdctl
make up
```

### Misc
- Although Usernetes (Gen2) is designed to be used with Rootless Docker, it should work with the regular "rootful" Docker too.
This might be useful for some people who are looking for "multi-host" version of [`kind`](https://kind.sigs.k8s.io/) and [minikube](https://minikube.sigs.k8s.io/).
5 changes: 5 additions & 0 deletions docker-compose.yaml
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -39,6 +39,11 @@ services:
# In addition, `net.ipv4.conf.default.rp_filter`
# has to be set to 0 (disabled) or 2 (loose)
# in the daemon's network namespace.
annotations:
# Accelerate network for nerdctl >= 2.0.0-beta.4 with bypass4netns >= 0.4.1
"nerdctl/bypass4netns": "${U7S_B4NN:-false}"
"nerdctl/bypass4netns-ignore-bind": "true"
"nerdctl/bypass4netns-ignore-subnets": "${U7S_B4NN_IGNORE_SUBNETS:-}"
networks:
default:
ipam:
Expand Down
Loading