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tests: Add tests for the 5.0.x kernel

Signed-off-by: Rolf Neugebauer <rn@rneugeba.io>
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rn committed Mar 10, 2019
1 parent 72827bc commit 3df49b9727be5eaf6cd013c76b7f40a3ab470413
@@ -0,0 +1,24 @@
#!/bin/sh
# SUMMARY: Sanity check on the kernel config file
# LABELS:
# REPEAT:

set -e

# Source libraries. Uncomment if needed/defined
#. "${RT_LIB}"
. "${RT_PROJECT_ROOT}/_lib/lib.sh"

NAME=kconfig

clean_up() {
rm -rf ${NAME}-*
}
trap clean_up EXIT

# Test code goes here
linuxkit build -format kernel+initrd -name "${NAME}" test.yml
RESULT="$(linuxkit run ${NAME})"
echo "${RESULT}" | grep -q "suite PASSED"

exit 0
@@ -0,0 +1,15 @@
kernel:
image: linuxkit/kernel:5.0.1
cmdline: "console=ttyS0 console=ttyAMA0"
init:
- linuxkit/init:005807f5c6a74e23f485a6d1657818bdccb70cd0
- linuxkit/runc:606971451ea29b4238029804ca638f9f85caf5af
onboot:
- name: check-kernel-config
image: linuxkit/test-kernel-config:85727fa0ad52861758230cd264059c79f657b953
- name: poweroff
image: linuxkit/poweroff:9f4e04f09bbb4a028f0a1f57d430e1ad3095ace1
command: ["/bin/sh", "/poweroff.sh", "3"]
trust:
org:
- linuxkit
@@ -0,0 +1,23 @@
# This Dockerfile extracts the kernel headers from the kernel image
# and then compiles a simple hello world kernel module against them.
# In the last stage, it creates a package, which can be used for
# testing.

FROM linuxkit/kernel:5.0.1 AS ksrc

# Extract headers and compile module
FROM linuxkit/alpine:5ce235f4fb55772e7f78871a70bfe26f774fe2b0 AS build
RUN apk add build-base libelf-dev

COPY --from=ksrc /kernel-dev.tar /
RUN tar xf kernel-dev.tar

WORKDIR /kmod
COPY ./src/* ./
RUN make all

# Package
FROM alpine:3.9
COPY --from=build /kmod/hello_world.ko /
COPY check.sh /check.sh
ENTRYPOINT ["/bin/sh", "/check.sh"]
@@ -0,0 +1,15 @@
#!/bin/sh
function failed {
printf "Kernel module test suite FAILED\n"
/sbin/poweroff -f
}

uname -a
modinfo hello_world.ko || failed
insmod hello_world.ko || failed
[ -n "$(dmesg | grep -o 'Hello LinuxKit')" ] || failed
rmmod hello_world || failed

printf "Kernel module test suite PASSED\n"

/sbin/poweroff -f
@@ -0,0 +1,6 @@
obj-m += hello_world.o
KVER=$(shell basename /usr/src/linux-headers-*)
all:
make -C /usr/src/$(KVER) M=$(PWD) modules
clean:
make -C /usr/src/$(KVER) M=$(PWD) clean
@@ -0,0 +1,22 @@
/*
* A simple Hello World kernel module
*/
#include <linux/module.h>
#include <linux/kernel.h>

int init_hello(void)
{
printk(KERN_INFO "Hello LinuxKit\n");
return 0;
}

void exit_hello(void)
{
printk(KERN_INFO "Goodbye LinuxKit.\n");
}

module_init(init_hello);
module_exit(exit_hello);
MODULE_AUTHOR("Rolf Neugebauer <rolf.neugebauer@docker.com>");
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("A simple Hello World kernel module for testing");
@@ -0,0 +1,31 @@
#!/bin/sh
# SUMMARY: Test build and insertion of kernel modules
# LABELS:
# REPEAT:

set -e

# Source libraries. Uncomment if needed/defined
#. "${RT_LIB}"
. "${RT_PROJECT_ROOT}/_lib/lib.sh"

NAME=kmod
IMAGE_NAME=kmod-test

clean_up() {
docker rmi ${IMAGE_NAME} || true
rm -rf ${NAME}-*
}
trap clean_up EXIT

# Make sure we have the latest kernel image
docker pull linuxkit/kernel:5.0.1
# Build a package
docker build -t ${IMAGE_NAME} .

# Build and run a LinuxKit image with kernel module (and test script)
linuxkit build -format kernel+initrd -name "${NAME}" test.yml
RESULT="$(linuxkit run ${NAME})"
echo "${RESULT}" | grep -q "Hello LinuxKit"

exit 0
@@ -0,0 +1,20 @@
kernel:
image: linuxkit/kernel:5.0.1
cmdline: "console=ttyS0 console=ttyAMA0"
init:
- linuxkit/init:005807f5c6a74e23f485a6d1657818bdccb70cd0
- linuxkit/runc:606971451ea29b4238029804ca638f9f85caf5af
onboot:
- name: check
image: kmod-test
binds:
- /dev:/dev
- /lib/modules:/lib/modules
capabilities:
- all
- name: poweroff
image: linuxkit/poweroff:9f4e04f09bbb4a028f0a1f57d430e1ad3095ace1
command: ["/bin/sh", "/poweroff.sh", "3"]
trust:
org:
- linuxkit

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