gcloud compute firewall-rules list

gcloud compute firewall-rules describe <FIREWALL_RULE_NAME>
gcloud compute firewall-rules describe allow-http

gcloud compute firewall-rules list --filter="targetTags:<VM_TAG>"
gcloud compute firewall-rules list --filter="targetTags=web-server"

gcloud compute firewall-rules list --filter="direction:INGRESS"
gcloud compute firewall-rules list --filter="direction:EGRESS"

# 查詢所有允許 TCP 80 (HTTP) 連線的規則
gcloud compute firewall-rules list --filter="allowed.tcp=80"

# 查詢所有允許 TCP 22 (SSH) 連線的規則
gcloud compute firewall-rules list --filter="allowed.tcp=22"


gcloud compute firewall-rules create allow-tcp-7800 \
    --direction=INGRESS \
    --priority=1000 \
    --network=default \
    --action=ALLOW \
    --rules=tcp:7800 \
    --source-ranges=0.0.0.0/0

gcloud compute firewall-rules list --filter="name=allow-tcp-7800"