From 0a35d388bc903880337ad2c59bfa914dd5af320d Mon Sep 17 00:00:00 2001 From: Tiejun Chen Date: Wed, 21 Feb 2018 14:53:14 -0800 Subject: [PATCH] Clarify to support Preempt-RT kernel Add one example yml to use Preempt-RT kernel, and mention -rt support in docs/kernels.md. Signed-off-by: Tiejun Chen --- docs/kernels.md | 5 +++++ examples/rt-for-vmware.yml | 36 ++++++++++++++++++++++++++++++++++++ 2 files changed, 41 insertions(+) create mode 100644 examples/rt-for-vmware.yml diff --git a/docs/kernels.md b/docs/kernels.md index 0ba7ed999..7430e5199 100644 --- a/docs/kernels.md +++ b/docs/kernels.md @@ -27,6 +27,11 @@ In addition to the official images, there are also some from some Linux distributions into LinuxKit kernel packages. These are mostly provided for testing purposes. +Note now linuxkit also embraces Preempt-RT Linux kernel to support more +use cases for the promising IoT scenarios. All -rt patches are grabbed from +https://www.kernel.org/pub/linux/kernel/projects/rt/. But so far we just +enable it over 4.14.x. + ## Loading kernel modules diff --git a/examples/rt-for-vmware.yml b/examples/rt-for-vmware.yml new file mode 100644 index 000000000..c9c4cff9b --- /dev/null +++ b/examples/rt-for-vmware.yml @@ -0,0 +1,36 @@ +kernel: + image: linuxkit/kernel:4.14.18-rt + cmdline: "console=tty0" +init: + - linuxkit/init:d899eee3560a40aa3b4bdd67b3bb82703714b2b9 + - linuxkit/runc:7c39a68490a12cde830e1922f171c451fb08e731 + - linuxkit/containerd:37e397ebfc6bd5d8e18695b121166ffd0cbfd9f0 + - linuxkit/ca-certificates:v0.2 +onboot: + - name: sysctl + image: linuxkit/sysctl:v0.2 +services: + - name: getty + image: linuxkit/getty:v0.2 + env: + - INSECURE=true + - name: rngd + image: linuxkit/rngd:v0.2 + - name: dhcpcd + image: linuxkit/dhcpcd:v0.2 + - name: open-vm-tools + image: linuxkit/open-vm-tools:v0.2 + - name: nginx + image: nginx:1.13.8-alpine + capabilities: + - CAP_NET_BIND_SERVICE + - CAP_CHOWN + - CAP_SETUID + - CAP_SETGID + - CAP_DAC_OVERRIDE + binds: + - /etc/resolv.conf:/etc/resolv.conf +trust: + org: + - linuxkit + - library