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#!/bin/bash
# test_podman_baseline.sh
# A script to be run at the command line with Podman installed.
# This should be run against a new kit to provide base level testing
# on a freshly installed machine with no images or container in
# play. This currently needs to be run as root.
#
# To run this command:
#
# /bin/bash -v test_podman_baseline.sh -d # Install and then deinstall Docker
# /bin/bash -v test_podman_baseline.sh -e # Stop on error
# /bin/bash -v test_podman_baseline.sh # Continue on error
#######
# See if we want to stop on errors and/or install and then remove Docker.
#######
showerror=0
installdocker=0
while getopts "de" opt; do
case "$opt" in
d) installdocker=1
;;
e) showerror=1
;;
esac
done
if [ "$installdocker" -eq 1 ]
then
echo "Script will install and then deinstall Docker."
fi
if [ "$showerror" -eq 1 ]
then
echo "Script will stop on unexpected errors."
set -eu
fi
########
# Next two commands should return blanks
########
podman images
podman ps --all
########
# Run ls in redis container, this should work
########
ctrid=$(podman pull registry.access.redhat.com/rhscl/redis-32-rhel7)
podman run $ctrid ls /
########
# Remove images and containers
########
podman rm --all
podman rmi --all
########
# Create Fedora based image
########
image=$(podman pull fedora)
echo $image
########
# Run container and display contents in /etc
########
podman run $image ls -alF /etc
########
# Run Java in the container - should ERROR but never stop
########
podman run $image java 2>&1 || echo $?
########
# Clean out containers
########
podman rm --all
########
# Install java onto the container, commit it, then run it showing java usage
########
podman run --net=host $image dnf -y install java
javaimage=$(podman ps --all -q)
podman commit $javaimage javaimage
podman run javaimage java
########
# Cleanup containers and images
########
podman rm --all
podman rmi --all
########
# Check images and containers, should be blanks
########
podman ps --all
podman images
########
# Create Fedora based container
########
image=$(podman pull fedora)
echo $image
podman run $image ls /
########
# Create shell script to test on
########
FILE=./runecho.sh
/bin/cat <<EOM >$FILE
#!/bin/bash
for i in {1..9};
do
echo "This is a new container pull ipbabble [" \$i "]"
done
EOM
chmod +x $FILE
########
# Copy and run file on container
########
ctrid=$(podman ps --all -q)
mnt=$(podman mount $ctrid)
cp ./runecho.sh ${mnt}/tmp/runecho.sh
podman umount $ctrid
podman commit $ctrid runecho
podman run runecho ./tmp/runecho.sh
########
# Inspect the container, verifying above was put into it
########
podman inspect $ctrid
########
# Check the images there should be a runecho image
########
podman images
########
# Remove the containers
########
podman rm -a
if [ "$installdocker" -eq 1 ]
then
########
# Install Docker, but not for long!
########
dnf -y install docker
fi
systemctl restart docker
########
# Push fedora-bashecho to the Docker daemon
########
podman push runecho docker-daemon:fedora-bashecho:latest
########
# Run fedora-bashecho pull Docker
########
docker run fedora-bashecho ./tmp/runecho.sh
if [ "$installdocker" -eq 1 ]
then
########
# Time to remove Docker
########
dnf -y remove docker
fi
########
# Build Dockerfile
########
FILE=./Dockerfile
/bin/cat <<EOM >$FILE
FROM docker/whalesay:latest
RUN apt-get -y update && apt-get install -y fortunes
CMD /usr/games/fortune -a | cowsay
EOM
chmod +x $FILE
########
# Build with the Dockerfile
########
podman build -f Dockerfile -t whale-says
########
# Run the container to see what the whale says
########
podman run whale-says
########
# Clean up Podman
########
podman rm --all
podman rmi --all
rm ./Dockerfile
########
# Set up xfs mount for overlay quota
########
# 1.004608 MB is 1,004,608 bytes. The container overhead is 4608 bytes (or 9 512 byte pages), so this allocates 1 MB of usable storage
PODMANBASE="-s overlay --storage-opt overlay.size=1.004608M --root /tmp/podman_test/crio"
TMPDIR=/tmp/podman_test
mkdir $TMPDIR
dd if=/dev/zero of=$TMPDIR/virtfs bs=1024 count=30720
device=$(losetup -f | tr -d '[:space:]')
losetup $device $TMPDIR/virtfs
mkfs.xfs $device
mount -t xfs -o prjquota $device $TMPDIR
########
# Expected to succeed
########
podman $PODMANBASE run --security-opt label=disable alpine sh -c 'touch file.txt && dd if=/dev/zero of=file.txt count=1048576 bs=1'
rc=$?
if [ $rc == 0 ];
then
echo "Overlay test within limits passed"
else
echo "Overlay test within limits failed"
fi
########
# Expected to fail
########
podman $PODMANBASE run --security-opt label=disable alpine sh -c 'touch file.txt && dd if=/dev/zero of=file.txt count=1048577 bs=1'
rc=$?
if [ $rc != 0 ];
then
echo "Overlay test outside limits passed"
else
echo "Overlay test outside limits failed"
fi
########
# Clean up Podman and /tmp
########
podman rm --all
podman rmi --all
umount $TMPDIR -l
losetup -d $device
rm -rf /tmp/podman_test
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