SSL certificates management in GCP - Step-by-Step Execution

Process Flow - SSL certificates management

Request SSL Certificate

↓

Certificate Issued by CA

↓

Upload Certificate to GCP

↓

Associate Certificate with Load Balancer

↓

Traffic Encrypted with SSL

↓

Monitor Certificate Expiry

↓

Renew or Replace Certificate

↩Back to Upload Certificate

This flow shows how an SSL certificate is requested, uploaded to GCP, associated with a load balancer, used to encrypt traffic, and then monitored for renewal.

Execution Sample

GCP

gcloud compute ssl-certificates create my-ssl-cert \
  --certificate=cert.pem \
  --private-key=key.pem

# Then associate with target HTTPS proxy

gcloud compute target-https-proxies update my-https-proxy \
  --ssl-certificates=my-ssl-cert

This code creates an SSL certificate resource in GCP and associates it with a target HTTPS proxy to enable SSL encryption.

Process Table

Step	Action	Input/Condition	Result/Output
1	Request SSL Certificate	User requests cert from CA	Certificate and private key files received
2	Create SSL Certificate resource	Use cert.pem and key.pem	SSL certificate resource 'my-ssl-cert' created in GCP
3	Associate certificate with HTTPS proxy	Update proxy with 'my-ssl-cert'	HTTPS proxy uses SSL certificate for encryption
4	Traffic encrypted	Client connects via HTTPS	Secure connection established
5	Monitor certificate expiry	Check expiry date regularly	Alert if certificate near expiry
6	Renew certificate	Before expiry	New certificate obtained
7	Replace certificate	Upload new cert and update proxy	HTTPS proxy uses renewed certificate
8	End	Certificate valid and active	SSL encryption continues
9	Exit	Certificate expired and not renewed	Connection fails or warning shown

💡 Execution stops if certificate expires without renewal, causing SSL failure

Status Tracker

Variable	Start	After Step 2	After Step 3	After Step 5	After Step 7	Final
SSL Certificate Resource	None	Created with cert.pem/key.pem	Associated with HTTPS proxy	Valid and monitored	Replaced with renewed cert	Active and valid
HTTPS Proxy SSL Config	None	None	Uses 'my-ssl-cert'	Uses 'my-ssl-cert'	Uses renewed cert	Uses renewed cert
Certificate Expiry Status	N/A	N/A	N/A	Checked regularly	Updated after renewal	Valid or expired

Key Moments - 3 Insights

Why do we need to upload both certificate and private key to GCP?

Because GCP needs both to establish secure connections; the certificate proves identity, and the private key enables encryption. See execution_table step 2.

What happens if the certificate expires and is not renewed?

SSL connections will fail or show warnings, causing insecure access. This is shown in execution_table step 9 where execution stops.

How does associating the certificate with the HTTPS proxy affect traffic?

It enables the proxy to encrypt traffic using the certificate, securing client connections. Refer to execution_table step 3 and 4.

Visual Quiz - 3 Questions

Look at the execution_table, at which step is the SSL certificate resource created in GCP?

A Step 1

B Step 2

C Step 3

D Step 4

💡 Hint

Check the 'Action' column for 'Create SSL Certificate resource'

According to variable_tracker, what is the status of the HTTPS Proxy SSL Config after step 3?

A Uses 'my-ssl-cert'

B Uses renewed cert

C None

D Invalid

💡 Hint

Look at the 'HTTPS Proxy SSL Config' row under 'After Step 3' column

If the certificate is not renewed before expiry, what is the expected outcome according to execution_table?

A SSL encryption continues normally

B Certificate resource is deleted automatically

C Connection fails or warning shown

D Proxy switches to default certificate

💡 Hint

See the 'Result/Output' in step 9 of execution_table

Concept Snapshot

SSL Certificates Management in GCP:
- Request certificate from CA
- Upload cert and private key to GCP
- Create SSL certificate resource
- Associate with HTTPS proxy
- Encrypt client traffic
- Monitor expiry and renew
- Replace certificate before expiry
- Prevent connection failures

Full Transcript

SSL certificates management in GCP involves requesting a certificate from a certificate authority, uploading the certificate and private key files to Google Cloud, creating an SSL certificate resource, and associating it with a target HTTPS proxy. This setup enables encrypted HTTPS traffic to your services. It is important to monitor the certificate's expiry date and renew it before it expires to avoid connection failures. The process includes replacing the old certificate with the renewed one in GCP to maintain secure connections.