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nginx-tls: only use hostname part for TLS certificate #851

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Sep 30, 2022
+3 −2
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nginx-tls: only use hostname part for TLS certificate #851

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5 changes: 3 additions & 2 deletions modules/cloud-config-container/nginx-tls/files/customize.sh
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Expand Up @@ -13,6 +13,7 @@
# See the License for the specific language governing permissions and
# limitations under the License.

HOSTNAME=$(curl -s -H "Metadata-Flavor: Google" http://metadata/computeMetadata/v1/instance/hostname)
openssl req -new -newkey rsa:4096 -days 365 -nodes -x509 -subj /CN=$HOSTNAME/ -keyout /etc/ssl/self-signed.key -out /etc/ssl/self-signed.crt
FQDN=$(curl -s -H "Metadata-Flavor: Google" http://metadata/computeMetadata/v1/instance/hostname)
HOSTNAME=$(echo $FQDN | cut -d"." -f1)
openssl req -new -newkey rsa:4096 -days 365 -nodes -x509 -subj /CN=$HOSTNAME/ -addext "subjectAltName = DNS:$FQDN" -keyout /etc/ssl/self-signed.key -out /etc/ssl/self-signed.crt
sed -i "s/HOSTNAME/${HOSTNAME}/" /etc/nginx/conf.d/default.conf