CoreOS

I keep forgetting stuff, so here I will be placing the usefull CoreOS related commands.

building rhcos

A simple recipe to build latest RHCOS image: source: https://github.com/openshift/os/blob/master/docs/development-rhcos.md

$ mkdir rhcos
$ cd rhcos
$ mkdir rhcos-4.15
$ cd rhcos-4.15
$ cosa shell # provided your cosa environment is set up - example below under `cosa func`
$ export COREOS_ASSEMBLER_ADD_CERTS='y'
$ export RHCOS_REPO="https://your.rhcos.repo.example.com/coreos/redhat-coreos.git"
$ cosa init --yumrepos "${RHCOS_REPO}" --branch release-4.15 https://github.com/openshift/os.git
$ cosa fetch
$ cosa build

Final result:

$ ls builds/
415.92.202312121624-0  builds.json  latest

$ ls builds/latest/x86_64/
commitmeta.json                     manifest.json                        rhcos-415.92.202312121624-0-ostree.x86_64-manifest.json
coreos-assembler-config-git.json    manifest-lock.generated.x86_64.json  rhcos-415.92.202312121624-0-ostree.x86_64.ociarchive
coreos-assembler-config.tar.gz      meta.json                            rhcos-415.92.202312121624-0-qemu.x86_64.qcow2
coreos-assembler-yumrepos-git.json  ostree-commit-object

cosa func

cosa() {
   env | grep COREOS_ASSEMBLER
   local -r COREOS_ASSEMBLER_CONTAINER_LATEST="quay.io/coreos-assembler/coreos-assembler:latest"
   if [[ -z ${COREOS_ASSEMBLER_CONTAINER} ]] && $(podman image exists ${COREOS_ASSEMBLER_CONTAINER_LATEST}); then
       local -r cosa_build_date_str="$(podman inspect -f "{{.Created}}" ${COREOS_ASSEMBLER_CONTAINER_LATEST} | awk '{print $1}')"
       local -r cosa_build_date="$(date -d ${cosa_build_date_str} +%s)"
       if [[ $(date +%s) -ge $((cosa_build_date + 60*60*24*7)) ]] ; then
         echo -e "\e[0;33m----" >&2
         echo "COSA is outdated." >&2
         # echo "podman pull ${COREOS_ASSEMBLER_CONTAINER_LATEST}" >&2
         # echo -e "----\e[0m" >&2
         pp
         sleep 10
       fi
   fi
   set -x
   podman run --rm -ti --security-opt=label=disable --privileged                                    \
              --uidmap=1000:0:1 --uidmap=0:1:1000 --uidmap=1001:1001:64536                          \
              -v=${PWD}:/srv/ --device=/dev/kvm --device=/dev/fuse                                  \
              --tmpfs=/tmp -v=/var/tmp:/var/tmp --name=cosa                                         \
              ${COREOS_ASSEMBLER_CONFIG_GIT:+-v=$COREOS_ASSEMBLER_CONFIG_GIT:/srv/src/config/:ro}   \
              ${COREOS_ASSEMBLER_GIT:+-v=$COREOS_ASSEMBLER_GIT/src/:/usr/lib/coreos-assembler/:ro}  \
              ${COREOS_ASSEMBLER_ADD_CERTS:+-v=/etc/pki/ca-trust:/etc/pki/ca-trust:ro}              \
              ${COREOS_ASSEMBLER_CONTAINER_RUNTIME_ARGS}                                            \
              ${COREOS_ASSEMBLER_CONTAINER:-$COREOS_ASSEMBLER_CONTAINER_LATEST} "$@"
   rc=$?; set +x; return $rc
}

Testing own stuff

Running the iscisi stuff

adamsky@laptop Work/coreos-assembler (pr/testiscsi %) » podman run –rm -ti –security-opt=label=disable –privileged –uidmap=1000:0:1 –uidmap=0:1:1000 –uidmap=1001:1001:64536 -v=${PWD}:/srv/ –device=/dev/kvm –device=/dev/fuse –tmpfs=/tmp -v=/var/tmp:/var/tmp -v=/home/adamsky/Work/coreos-assembler-hacking/:/srv/fcos –name=cosa quay.io/coreos-assembler/coreos-assembler:latest shell

[coreos-assembler]$ cd fcos [coreos-assembler]$ pwd /srv/fcos [coreos-assembler]$ ls builds cache overrides src tmp [coreos-assembler]$ ../mantle/build kola Building kola [coreos-assembler]$ ../bin/kola testiso -S iso-install-iscsi

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cosa shell

./mantle/build kola ./bin/kola list | grep coreos.unique.boot.failure ./bin/kola run -b fcos –qemu-image fedora-coreos-38.20230918.dev.0-qemu.x86_64.qcow2 coreos.unique.boot.failure

[coreos-assembler]$ ./mantle/build kola Building kola [coreos-assembler]$ ./bin/kola run -b fcos –qemu-image fedora-coreos-38.20230918.dev.0-qemu.x86_64.qcow2 coreos.unique.boot.failure

podman run –rm -ti –security-opt=label=disable –privileged –uidmap=1000:0:1 –uidmap=0:1:1000 –uidmap=1001:1001:64536 -v=${PWD}:/srv/ –device=/dev/kvm –device=/dev/fuse –tmpfs=/tmp -v=/var/tmp:/var/tmp -v=/home/adamsky/Work/coreos-assembler-hacking/:/srv/fcos –name=cosa quay.io/coreos-assembler/coreos-assembler:latest shell

cosa kola

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