148 lines
3.9 KiB
Plaintext
Executable File
148 lines
3.9 KiB
Plaintext
Executable File
# nix-shell -p gnumake jq openssh cac-api cac-panel sshpass
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set -eufx
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# 2 secrets are required:
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krebs_cred=${krebs_cred-./cac.json}
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retiolum_key=${retiolum_key-./retiolum.rsa_key.priv}
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clear_defer(){
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echo "${trapstr:-exit}"
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trap - INT TERM EXIT KILL
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}
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defer(){
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if test -z "${debug:-}"; then
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trapstr="$1;${trapstr:-exit}"
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trap "$trapstr" INT TERM EXIT KILL
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fi
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}
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# Sanity
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if test ! -r "$krebs_cred";then
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echo "\$krebs_cred=$krebs_cred must be readable"; exit 1
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fi
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if test ! -r "$retiolum_key";then
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echo "\$retiolum_key=$retiolum_key must be readable"; exit 1
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fi
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krebs_secrets=$(mktemp -d)
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sec_file=$krebs_secrets/cac_config
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krebs_ssh=$krebs_secrets/tempssh
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export cac_resources_cache=$krebs_secrets/res_cache.json
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export cac_servers_cache=$krebs_secrets/servers_cache.json
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export cac_tasks_cache=$krebs_secrets/tasks_cache.json
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export cac_templates_cache=$krebs_secrets/templates_cache.json
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# we need to receive this key from buildmaster to speed up tinc bootstrap
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defer "trap - INT TERM EXIT"
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defer "rm -r $krebs_secrets"
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cat > $sec_file <<EOF
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cac_login="$(jq -r .email $krebs_cred)"
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cac_key="$(cac-panel --config $krebs_cred settings | jq -r .apicode)"
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EOF
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export cac_secrets=$sec_file
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cac-panel --config $krebs_cred add-api-ip
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# test login:
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cac-api update
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cac-api servers
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# preserve old trap
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old_trapstr=$(clear_defer)
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while true;do
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# Template 26: CentOS7
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# TODO: use cac-api templates to determine the real Centos7 template in case it changes
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out=$(cac-api build cpu=1 ram=512 storage=10 os=26 2>&1)
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if name=$(echo "$out" | jq -r .servername);then
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id=servername:$name
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echo "got a working machine, id=$id"
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else
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echo "Unable to build a virtual machine, retrying in 15 seconds" >&2
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echo "Output of build program: $out" >&2
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sleep 15
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continue
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fi
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clear_defer >/dev/null
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defer "cac-api delete $id"
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# TODO: timeout?
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wait_login_cac(){
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# we wait for 30 minutes
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for t in `seq 180`;do
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# now we have a working cac-api server
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if cac-api ssh $1 -o ConnectTimeout=10 \
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cat /etc/redhat-release | \
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grep CentOS ;then
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return 0
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fi
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sleep 10
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done
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return 1
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}
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# die on timeout
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if ! wait_login_cac $id;then
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echo "unable to boot a working system within time frame, retrying..." >&2
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echo "Cleaning up old image,last status: $(cac-api update;cac-api getserver $id | jq -r .status)"
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eval "$(clear_defer | sed 's/;exit//')"
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sleep 15
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else
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echo "got a working system" >&2
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break
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fi
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done
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clear_defer >/dev/null
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defer "cac-api delete $id;$old_trapstr"
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mkdir -p shared/2configs/temp
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cac-api generatenetworking $id > \
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shared/2configs/temp/networking.nix
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# new temporary ssh key we will use to log in after install
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ssh-keygen -f $krebs_ssh -N ""
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cp $retiolum_key $krebs_secrets/retiolum.rsa_key.priv
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# we override the directories for secrets and stockholm
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# additionally we set the ssh key we generated
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ip=$(cac-api getserver $id | jq -r .ip)
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cat > shared/2configs/temp/dirs.nix <<EOF
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_: {
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krebs.build.source.dir = {
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secrets.path = "$krebs_secrets";
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stockholm.path = "$(pwd)";
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};
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users.extraUsers.root.openssh.authorizedKeys.keys = [
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"$(cat ${krebs_ssh}.pub)"
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];
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}
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EOF
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make install \
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LOGNAME=shared \
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SSHPASS="$(cac-api getserver $id | jq -r .rootpass)" \
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ssh='sshpass -e ssh -S none -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null' \
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system=test-centos7 \
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target=$ip
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# TODO: generate secrets directory $krebs_secrets for nix import
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cac-api powerop $id reset
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wait_login(){
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# timeout
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for t in `seq 90`;do
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# now we have a working cac-api server
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if ssh -o StrictHostKeyChecking=no \
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-o UserKnownHostsFile=/dev/null \
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-i $krebs_ssh \
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-o ConnectTimeout=10 \
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-o BatchMode=yes \
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root@$1 nixos-version ;then
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return 0
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fi
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sleep 10
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done
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return 1
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}
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wait_login $ip
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