I can't connect Google Cloud SQL from GCE even I added public IP (external IP) of my GCE instance as a authorized network. It works when I add "0.0.0.0" into authorized network. Obviously I don't want to do that. The authorized network setting may be the cause. But I can't find out it. Does anyone know about this.
I'm using Google Cloud SQL version 2 beta. I am trying to connect from GCP cloud console. Although it may be not necessary, I changed external IP setting from ephemeral to static but it didn't work.
mysql -u root -p -h xxxx <--- I can login normally if I add "0.0.0.0" into authorized network.
I've double checked this same question..
Linking Google Compute Engine and Google Cloud SQL
1. Ensure your Cloud SQL instance has an IPv4 address.
2. Find out the public IP address of your GCE instance and add it as an authorized network on your Cloud SQL instance.
3. Add a MySQL username and password for your instance with remote access.
4. When connecting from GCE use you standard MySQL connection system (e.g. mysqli_connect) with the username and password you just set up, connecting to the IPv4 address of your Cloud SQL instance.
Edit 1
I noticed this description.
Note: Connecting to Cloud SQL from Compute Engine using the Cloud SQL Proxy is currently available only for Cloud SQL Second Generation instances.
https://cloud.google.com/sql/docs/compute-engine-access
Does it mean that I have to use the Proxy..?
Edit 2
$ mysql -u root -p -h (Cloud SQL Instance's IP)
Enter password:
ERROR 2003 (HY000): Can't connect to MySQL server on '(Cloud SQL Instance's IP)' (110)
Edit 3
Does it mean that I have to use the Proxy..?
According to the official document as Vadim said, Cloud SQL Proxy seems to be optional but it sounds better for security, flexibility and also the price. (static IP will be charged. However, the proxy setting may be complicated for me..)
https://cloud.google.com/sql/docs/compute-engine-access
If you are connecting to a Cloud SQL First Generation instance, then you must use its IP address to connect. However, if you are using a Cloud SQL Second Generation instance, you can also use the Cloud SQL Proxy or the Cloud SQL Proxy Docker image.
Edit 4
I found the reason... I was stupid... I tried connect from Google Cloud Shell but that was not my gce instance. It works when I try to connect from my gce instance.
Did you add the public IP of the GCE VM under authorized networks?
From your post:
2. Find out the public IP address of your GCE instance and add it as an authorized network on your Cloud SQL instance.
The official documentation is here:
https://cloud.google.com/sql/docs/external#appaccessIP
Related
Is there a way to proxy/ port forward GCP Cloud SQL so that we can connect to it via the internet?
I don't want to do an SSH port forward via a Virtual Machine. Instead, I'm looking for a way such that we could connect to CloudSQL from a public IP of either a Virtual Machine or a Kubernetes service.
I don't want to connect directly from the public IP of the CloudSQL instance as it requires us to whitelist the user's IP address. We have also tried the Cloud SQL proxy but faced speed and performance issues.
Hence, now I'm looking for a solution to proxy the CloudSQL connection from a VM or Kubernetes service
I have tried using Stunnel to proxy the connection as described in this documentation.
output=/tmp/stunnel.log
CAfile=/tmp/mysql-server-ca.pem
client=yes
pid=/var/run/stunnel.pid
verifyChain=yes
sslVersion=TLSv1.2
[mysqls]
accept=0.0.0.0:3307
connect=private-ip:3306
But, I get an error while connecting to the MySQL server:
ERROR 2013 (HY000): Lost connection to MySQL server at 'reading initial communication packet', system error: 104
Edit:
Stunnel runs on a Virtual Machine on Google Cloud
Stunnel connects to CloudSQL via Private IP (Both VM and CloudSQL share the same subnet)
MySQL can be connected from the VM using the private IP
Stunnel Logs:
2022.09.22 10:53:17 LOG5[2]: Service [mysqls] accepted connection from 127.0.0.1:37014
2022.09.22 10:53:17 LOG5[2]: s_connect: connected <mysql-private-ip>:3306
2022.09.22 10:53:17 LOG5[2]: Service [mysqls] connected remote server from 10.128.0.53:53302
2022.09.22 10:53:17 LOG3[2]: SSL_connect: ../ssl/record/ssl3_record.c:331: error:1408F10B:SSL routines:ssl3_get_record:wrong version number
2022.09.22 10:53:17 LOG5[2]: Connection reset: 0 byte(s) sent to TLS, 0 byte(s) sent to socket
To access a Cloud SQL from a Compute Engine VM try the following, you can use either the Cloud SQL Auth proxy (with public or private IP), or connect directly using a private IP address
From the client machine or Compute Engine VM instance, use What's my
IP to see the IP address of the client machine.
Copy that IP address. In the Google Cloud console, go to the Cloud
SQL Instances page.
Go to Cloud SQL Instances
To open the Overview page of an instance, click the instance name.
Select Connections from the SQL navigation menu.
In the Authorized networks section, click Add network and enter the
IP address of the machine where the client is installed. Note: The IP
address of the instance and the MySQL client IP address you authorize
must be the same IP version: either IPv4 or IPv6
Click Done. Then click Save at the bottom of the page to save your
changes. Connect to your instance, either with SSL or without SSL.
To access a Cloud SQL instance from an application running in Google Kubernetes Engine, you can use either the Cloud SQL Auth proxy (with public or private IP), or connect directly using a private IP address. To connect to Cloud SQL you must have:
A GKE cluster, with the kubectl command-line tool installed and
configured to communicate with the cluster. For help getting started
with GKE, see the Quickstart.
Check the document for steps on how to configure without SSL
For Public IP-configured instances, a public-facing IPv4 address may
be enabled, allowing users outside the GCP project and VPC network to
connect to the instance.
Check the similar example here.
I made instance in Google Cloud > Storage > SQL > MYSQL. Now I have to import database in it so I am trying to connect to MYSQL
using adminer, but it gives following error
SQLSTATE[HY000] [2002] Operation timed out
I also tried via HeidiSQL > MariaDB or MYSQL (SSL Tunnel) but here also it does not connect and gives error
https://prnt.sc/o58in0
I am mentioning
Host: Public Ip of SQL instance
Username: root
Any suggestions, what could be the fix?
Your error typically means that a firewall blocked your connection attempt.
For Cloud SQL, this typically means that you have not enabled instance-level access.
Since your error is 10060, which is a Windows WinSock error message, I am assuming that you are running on Windows. The steps are similar for Linux.
There are two methods to enable access to Cloud SQL:
Cloud SQL Proxy
This is the recommended method and is secure. Download and install the Cloud SQL Proxy to your the computer that you want to connect from. If you have set up the Cloud SDK (gcloud), Cloud SQL Proxy will use your Cloud SDK credentials. If not, then you will need to create and download a service account with (usually) the Cloud SQL Client role.
You will need the "instance connection name" from Cloud SQL Instance details page.
Download Cloud SQL Proxy (link) to your computer. Remember the full path to the program. Save the program as "cloud_sql_proxy.exe"
Start the Cloud SQL Proxy
[full_path_to_program]\cloud_sql_proxy -instances=[INSTANCE_CONNECTION_NAME]=tcp:3306
OR
[full_path_to_program]\cloud_sql_proxy -instances=<INSTANCE_CONNECTION_NAME>=tcp:3306 -credential_file=[PATH_TO_KEY_FILE]
Connect using mysql.exe: `mysql -u USERNAME -p --host 127.0.0.1
Public IP Method
The second method is not secure unless you also enable SSL, which I will not cover in this answer. I do not recommend this method except for knowledgeable persons.
Figure out what your public IP address is. Go to any website such as "MXToolbox" https://mxtoolbox.com/whatismyip/
Go to the Google Cloud Console
Go to the Cloud SQL Instances Details page
Select the Connections tab
Click Add network
In the Network field, enter your Public IP address using CIDR notice: eg 145.11.22.33/32
Enter a name such as "My Home IP"
Click Done
Click Save
Note: Most home Internet services change your Public IP address periodically. This means that you will need to update your Public IP address in Cloud SQL if you are using the second method.
I don't understand why I got inconsistent connection from my local MySQL Workbench to Google Cloud SQL.
Something, I can connect to my database the first time, sometimes, I need to try multiples times before getting a connection. Sadly, most of the time, it's not working.
Because I can rarely connect to the database, what kind of configuration can cause this problem?
Here's some infos:
My application hosted on Google Compute Engine don't have any connection problem.
My public IP (personnal computer) is added to the Authorised networks in my Google Cloud SQL instance. See: Enabling public IP and adding an authorized address
I have added a Firewall rules to allow port 3306 in Google Cloud VPC network
SSL is currently disable for the testing purpose
I followed these instructions: How to connect to your Cloud SQL instance database with MySQL Workbench
For the benefit of future readers, the result of the comments above was:
The problem was that the client was alternating between two possible external IP addresses. One had been authorized to access Google Cloud, and the other one had not been authorized.
Enable all client IP addresses to connect, and that should fix it.
I am stuck at one thing regarding CloudSQL.
I have my WordPress app running on GCE and I create Instance Group so I will utilise the AutoScaler.
for Db, I am using CloudSQL.
Now point where is stuck is the "Authorise network" in CloudSQL as it accepts only IPV4 Public IP.
How do I know when autoscaling happen what IP will attach to Instance so my instance will know where the DB is?
I can hard code the CloudSQL IP as a CNAME but from CloudSQL Side I am not able to figure it out how to provide access. I can make my DB access all open
If you can let me know what will be the point which I am missing.
I used cloudsql proxy also but that doesn't come with Service in Linux ... I hope you can understand my situation. Let me know if any idea you like to share on this.
Thank you
The recommended way is to use the second generation instances and Cloud SQL Proxy, you’ll need to configure the Proxy on Linux and start it by using service account credentials as outlined at the provided link.
Another way is to use startup script in your GCE instance template, so you can get your new instance’s external IP address and add it to a Cloud SQL instance’s authorized networks by using gcloud sql instance patch command. The IP can be removed from the authorized networks in the same way by using shutdown script. The external IP address of GCE VM instance can be retrieved from metadata by running:
$ curl "http://metadata.google.internal/computeMetadata/v1/instance/network-interfaces/0/access-configs/0/external-ip" -H "Metadata-Flavor: Google".
The new Google Cloud SQL Engine creates its own VM instance to run a MySQL database, with an exposed public IP address. I was hoping that it would be possible to VPN into the Google Compute Cloud, then connect to the MySQL VM instance internally. Is this possible? The computer I am trying to connect from is a physical machine located outside of the cloud.
If it's not possible, what if I connect via VPN and use the public IP address to connect to the MySQL instance? Would it resolve to the internal network quickly and mimic the behavior of a local connection (no delay)? Or would it have the same performance as connected to the external IP address with no VPN in place?
Sorry, there's currently no VPN/private IP support for Cloud SQL. At the moment, you can use instance settings to control which IPs are allowed to connect. By default, the mysql server is locked down from all external connectivity.
Connecting through a VPN should not improve latency and may in fact hurt it depending on how things are setup. I would recommend doing your own test if that's something you wish to verify.
You can also use the Cloud SQL Proxy to connect externally which uses SSL certs to establish an SSL tunnel to MySQL.