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#!/usr/bin/env bash
# Copyright 2021 syzkaller project authors. All rights reserved.
# Use of this source code is governed by Apache 2 LICENSE that can be found in the LICENSE file.
# Rebuilds ci-openbsd in syzkaller project. Helpfully munges the
# .ssh/known_hosts file since the new image has a fresh key.
#
# DROPS files in the current directory, so best used from a subdir of /tmp.
#
# The user is expected to have the private key matching
# the public keys baked into create-openbsd* scripts and a
# section in their .ssh/config similar to this:
# Host ci-openbsd
# Hostname ci-openbsd # if running on a project VM or the external IP
# User syzkaller
# IdentityFile ~/.ssh/id_syzkaller
# Before running first time do:
# sudo apt-get install genisoimage growisofs qemu qemu-kvm qemu-system-x86-64 expect
# The script does not require any arguments/env vars, run just as:
# $GOPATH/src/github.com/google/syzkaller/dashboard/config/openbsd/recreate.sh
set -eux
TODAY=$(date -u +%Y-%m-%d)
SYZ_DIR="$(cd "$(dirname "${0}")"/../../..; pwd -P)"
[[ -d "${SYZ_DIR}/tools" ]] || { echo "Requires syzkaller dir $SYZ_DIR" ; exit 1; }
ZONE=us-central1-b
INSTANCE=ci-openbsd
HOST="${HOST:-${INSTANCE}}"
IP=$(gcloud compute instances describe "${INSTANCE}" --zone="${ZONE}" --project=syzkaller '--format=text(networkInterfaces[].accessConfigs[].natIP)' | cut -f2 -d' ')
SERVICE_ACCOUNT=$(gcloud compute instances describe "${INSTANCE}" --zone="${ZONE}" --project=syzkaller '--format=text(serviceAccounts[].email)' | cut -d' ' -f2)
IMAGE="${INSTANCE}"-"${TODAY}"-root
"${SYZ_DIR}"/tools/create-openbsd-gce-ci.sh
gsutil -u syzkaller cp -a public-read openbsd-amd64-snapshot-gce.tar.gz gs://syzkaller/openbsd-amd64-"${TODAY}"-gce.tar.gz
ssh root@"${HOST}" halt -p || true
yes | gcloud compute --project=syzkaller images delete "${IMAGE}" || true
gcloud compute --project=syzkaller images create "${IMAGE}" --source-uri gs://syzkaller/"openbsd-amd64-${TODAY}-gce.tar.gz"
yes | gcloud compute --project=syzkaller instances delete "${INSTANCE}" \
--zone="${ZONE}"
gcloud compute --project=syzkaller \
instances create "${INSTANCE}" \
--address="${IP}" \
--private-network-ip "${INSTANCE}"-internal \
--boot-disk-device-name="${INSTANCE}" \
--boot-disk-size=10GB \
--boot-disk-type=pd-ssd \
--disk=name="${INSTANCE}"-syzkaller,device-name="${INSTANCE}"-syzkaller,mode=rw,boot=no \
--image-project=syzkaller \
--image="${IMAGE}" \
--machine-type=custom-12-65536 \
--maintenance-policy=MIGRATE \
--metadata=serial-port-enable=1 \
--network-tier=PREMIUM \
--scopes=https://www.googleapis.com/auth/cloud-platform \
--service-account="${SERVICE_ACCOUNT}" \
--subnet=default \
--zone="${ZONE}"
(grep -v "^$IP" ~/.ssh/known_hosts && echo "${IP}" "$(grep ssh-ed25519 install_log)") > ~/.ssh/known_hosts.new
mv ~/.ssh/known_hosts{.new,}
"${SYZ_DIR}"/tools/create-openbsd-vmm-worker.sh
ssh syzkaller@"${HOST}" mkdir -p /syzkaller/userspace
ssh syzkaller@"${HOST}" ln -sf /syzkaller/{gopath/src/github.com/google/syzkaller/dashboard/,}config
scp worker_key syzkaller@"${HOST}":/syzkaller/userspace/key
scp -C worker_disk.raw syzkaller@"${HOST}":/syzkaller/userspace/image
ssh syzkaller@"${HOST}" 'D=/syzkaller/userspace-multicore && mkdir -p $D && ln -sf ../userspace/{image,key} $D && ln -sf ../config/openbsd/overlays/ci-openbsd-multicore $D/overlay'
ssh root@"${HOST}" reboot
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