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Enable TPM2 on SUSE diskless for apikey

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Rather than remote sealed copy, store it in the TPM2

Will convert genesis and EL diskless for this to be the new preferred
mechanism.
This commit is contained in:
Jarrod Johnson 2021-06-23 17:01:27 -04:00
parent b8c9e9c535
commit b30fabd55d
2 changed files with 22 additions and 11 deletions
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31
confluent_osdeploy/suse15-diskless/initramfs/lib/dracut/hooks/cmdline/10-confluentdiskless.sh
View File

@ -65,28 +65,39 @@ fi
needseal=1
oldumask=$(umask)
umask 0077
for hdl in $(tpm2_getcap handles-persistent|awk '{print $2}'); do
unsealeddata=$(tpm2_unseal -Q -c $hdl)
if [[ $unsealeddata == "CONFLUENT_APIKEY:"* ]]; then
confluent_apikey=${unsealeddata#CONFLUENT_APIKEY:}
fi
done
needseal=0
while [ -z "$confluent_apikey" ]; do
/opt/confluent/bin/clortho $nodename $confluent_mgr > /etc/confluent/confluent.apikey
if grep ^SEALED: /etc/confluent/confluent.apikey > /dev/null; then
needseal=0
sed -e s/^SEALED:// /etc/confluent/confluent.apikey | clevis-decrypt-tpm2 > /etc/confluent/confluent.apikey.decrypt
mv /etc/confluent/confluent.apikey.decrypt /etc/confluent/confluent.apikey
# we don't support remote sealed api keys
echo > /etc/confluent/confluent.apikey
fi
confluent_apikey=$(cat /etc/confluent/confluent.apikey)
if [ -z "$confluent_apikey" ]; then
echo "Unable to acquire node api key, no TPM2 sealed nor fresh token available, retrying..."
echo "Unable to acquire node api key, set deployment.apiarmed=once on node '$nodename', retrying..."
sleep 10
fi
needseal=1
done
if [[ $confluent_mgr == *:* ]]; then
confluent_mgr="[$confluent_mgr]"
fi
#if [ $needseal == 1 ]; then
# sealed=$(echo $confluent_apikey | clevis-encrypt-tpm2 {})
# if [ ! -z "$sealed" ]; then
# curl -sf -H "CONFLUENT_NODENAME: $nodename" -H "CONFLUENT_APIKEY: $confluent_apikey" -d $sealed https://$confluent_mgr/confluent-api/self/saveapikey
# fi
#fi
if [ $needseal == 1 ]; then
tmpdir=$(mktemp -d)
cd $tmpdir
tpm2_createprimary -G ecc -Q --key-context=prim.ctx
(echo -n "CONFLUENT_APIKEY:";cat /etc/confluent/confluent.apikey) | tpm2_create -Q --public=data.pub --private=data.priv -i - -C prim.ctx
tpm2_load -Q --parent-context=prim.ctx --public=data.pub --private=data.priv --name=confluent.apikey --key-context=data.ctx
tpm2_evictcontrol -Q -c data.ctx
cd -
rm -rf $tmpdir
fi
curl -sf -H "CONFLUENT_NODENAME: $nodename" -H "CONFLUENT_APIKEY: $confluent_apikey" https://$confluent_mgr/confluent-api/self/deploycfg > /etc/confluent/confluent.deploycfg
umask $oldumask
autoconfigmethod=$(grep ipv4_method /etc/confluent/confluent.deploycfg |awk '{print $2}')

2
imgutil/suse15/dracut/install
View File

@ -1,6 +1,6 @@
dracut_install /usr/bin/mktemp
dracut_install /usr/lib64/libtss2-tcti-device.so.*
dracut_install /usr/bin/tpm2_create /usr/bin/tpm2_pcrread /usr/bin/tpm2_createpolicy /usr/bin/tpm2_createprimary /usr/bin/tpm2_load /usr/bin/tpm2_unseal
dracut_install /usr/bin/tpm2_create /usr/bin/tpm2_pcrread /usr/bin/tpm2_createpolicy /usr/bin/tpm2_createprimary /usr/bin/tpm2_load /usr/bin/tpm2_unseal /usr/bin/tpm2_getcap /usr/bin/tpm2_evictcontrol
dracut_install curl openssl tar cpio gzip lsmod ethtool xz lsmod ethtool
dracut_install modprobe touch echo cut wc bash uniq grep ip hostname
dracut_install awk egrep dirname expr sort