blocks|key|1189140|text|云SQL现在支持MySQL、PostgreSQL和Server的IAM条件。您可以使用IAM条件在IAM策略中指定用户拥有权限的特定实例，例如用于授权Cloud代理的cloudsql.instances.connect。2021年|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1189141|https://cloud.google.com/sql/docs/mysql/project-access-control#iam-conditions|1189142|entityMap|0|LINK|mutability|MUTABLE|url|https://cloud.google.com/sql/docs/release-notes#August_21_2021|1^0|32|5|0|0|0|25|1|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@$A|P|B|Q|1|R]]|C|$]]|$1|D|3|E|5|6|7|S|8|@]|9|@$A|T|B|U|1|V]]|C|$]]|$1|F|3|-4|5|6|7|W|8|@]|9|@]|C|$]]]|G|$H|$5|I|J|K|C|$L|M]]|N|$5|I|J|K|C|$L|E]]]]

Cloud SQL now supports IAM Conditions for MySQL, PostgreSQL, and SQL Server. You can use IAM conditions to specify in an IAM policy binding the specific instances by name for which a user has permissions, such as the cloudsql.instances.connect for authorizing the Cloud SQL Auth proxy. <a href="https://cloud.google.com/sql/docs/release-notes#August_21_2021" rel="nofollow noreferrer">https://cloud.google.com/sql/docs/release-notes#August_21_2021</a>
<a href="https://cloud.google.com/sql/docs/mysql/project-access-control#iam-conditions" rel="nofollow noreferrer">https://cloud.google.com/sql/docs/mysql/project-access-control#iam-conditions</a>

blocks|key|2182565|text|是否有一种方法可以通过只允许那些计算引擎实例连接到已附加了指定服务帐户的my实例来限制它？|type|blockquote|depth|inlineStyleRanges|entityRanges|data|2182566|已经有一个特征请求与您所关心的问题相同。您可以对公共问题跟踪器功能请求进行定位，以确保您将收到有关它的更新。|unstyled|offset|length|2182567|作为替代方法，为Cloud实例连接和Compute实例创建一个新的connection。或者将Cloud实例和Compute实例托管到一个新的中。|2182568|entityMap|0|LINK|mutability|MUTABLE|url|https://issuetracker.google.com/68765990^0|0|5|4|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|R|8|@]|9|@$E|S|F|T|1|U]]|A|$]]|$1|G|3|H|5|D|7|V|8|@]|9|@]|A|$]]|$1|I|3|-4|5|D|7|W|8|@]|9|@]|A|$]]]|J|$K|$5|L|M|N|A|$O|P]]]]

<blockquote>
Is there a way to restrict it by saying only allow those compute engine instances to connect to my Cloud SQL instance that has specified service account attached?
</blockquote>
There's already a <a href="https://issuetracker.google.com/68765990" rel="nofollow noreferrer">feature request</a> that the same of your concern. You can star the public issue tracker feature requests to ensure that you will receive the updates about it.
As alternative way, create a new VPC Network for your Cloud SQL instance connection and Compute Engine instance. Or host your Cloud SQL instance and Compute Engine instance to a new Google Cloud Project.

blocks|key|1619198|text|你可以基于服务帐户创建防火墙规则。假设您的端口是3306+(MySQL标准端口)。你可以这样做：|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1619199|创建防火墙规则：|unordered-list-item|1619200|网络中的源->所有VM|1619201|数据库的目标->+IP|1619202|出口，出口|1619203|拒绝|1619204|优先事项10000|1619205|3306港|1619206|协议TCP|1619207|1619208|为每个VM创建要授权的防火墙规则|1619209|VM的源->服务帐户|1619210|数据库的目标->+IP|1619211|1619212|允许|1619213|优先次序1000|1619214|1619215|1619216|1619217|像这样，默认情况下阻塞所有，并且只显式地授权具有指定服务帐户的VM访问数据库IP。|1619218|entityMap|0|LINK|mutability|MUTABLE|url|https://cloud.google.com/vpc/docs/using-firewalls#creating_firewall_rules^0|3|D|0|0|1|1|1|1|1|1|1|1|0|1|1|1|1|1|1|1|1|0|0^^$0|@$1|2|3|4|5|6|7|1J|8|@]|9|@$A|1K|B|1L|1|1M]]|C|$]]|$1|D|3|E|5|F|7|1N|8|@]|9|@]|C|$]]|$1|G|3|H|5|F|7|1O|8|@]|9|@]|C|$]]|$1|I|3|J|5|F|7|1P|8|@]|9|@]|C|$]]|$1|K|3|L|5|F|7|1Q|8|@]|9|@]|C|$]]|$1|M|3|N|5|F|7|1R|8|@]|9|@]|C|$]]|$1|O|3|P|5|F|7|1S|8|@]|9|@]|C|$]]|$1|Q|3|R|5|F|7|1T|8|@]|9|@]|C|$]]|$1|S|3|T|5|F|7|1U|8|@]|9|@]|C|$]]|$1|U|3|-4|5|6|7|1V|8|@]|9|@]|C|$]]|$1|V|3|W|5|F|7|1W|8|@]|9|@]|C|$]]|$1|X|3|Y|5|F|7|1X|8|@]|9|@]|C|$]]|$1|Z|3|10|5|F|7|1Y|8|@]|9|@]|C|$]]|$1|11|3|L|5|F|7|1Z|8|@]|9|@]|C|$]]|$1|12|3|13|5|F|7|20|8|@]|9|@]|C|$]]|$1|14|3|15|5|F|7|21|8|@]|9|@]|C|$]]|$1|16|3|R|5|F|7|22|8|@]|9|@]|C|$]]|$1|17|3|T|5|F|7|23|8|@]|9|@]|C|$]]|$1|18|3|-4|5|6|7|24|8|@]|9|@]|C|$]]|$1|19|3|1A|5|6|7|25|8|@]|9|@]|C|$]]|$1|1B|3|-4|5|6|7|26|8|@]|9|@]|C|$]]]|1C|$1D|$5|1E|1F|1G|C|$1H|1I]]]]

You can <a href="https://cloud.google.com/vpc/docs/using-firewalls#creating_firewall_rules" rel="nofollow noreferrer">create firewall rule based on the service account</a>. Let say that your port is 3306 (MySQL standard port). You can do that:
<ul>
<li>Create a firewall rule:
<ul>
<li>Source -&gt; All VM in the network</li>
<li>Target -&gt; IP of your database</li>
<li>Egress</li>
<li>Deny</li>
<li>priority 10000</li>
<li>port 3306</li>
<li>Protocol TCP</li>
</ul>
</li>
<li>Create a firewall rules per VM that you want to authorize
<ul>
<li>Source -&gt; Service Account of the VM</li>
<li>Target -&gt; IP of your database</li>
<li>Egress</li>
<li>Allow</li>
<li>priority 1000</li>
<li>port 3306</li>
<li>Protocol TCP</li>
</ul>
</li>
</ul>
Like that you block all by default, and you authorize only explicitly the VM with the specified service account to reach your database IP

blocks|key|1619272|text|我实施了类似于纪尧姆·布拉奎尔上面的答案的策略，但是使用了标记而不是服务帐户。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1619273|我有4个Compute引擎资源和3个Cloud实例都在同一个项目中，我的目标是允许一个特定的服务器访问这3个数据库中的每一个，然后第四个服务器应该被完全限制不能访问DBs。我所有的Compute引擎服务器都是用相同的服务帐户创建的，我不想停止这些资源来重新分配服务帐户。|1619274|我以前为每个Compute服务器分配了一个唯一的标记(用于入口流量阻塞)，因此我设置了以下规则：|1619275|服务器1到DB+1(其他两台服务器的...x2)|ordered-list-item|1619276|方向:出口|unordered-list-item|1619277|行动:允许|1619278|优先事项:+800|1619279|目标:指定的目标标记|1619280|目标标记：|1619281|目标IP：|1619282|端口:+TCP+5432+(我正在使用Postgres)|1619283|服务器1到DB+1|1619284|1619285|行动:否认|1619286|优先事项:+900|1619287|目标:所有实例|1619288|目标IP：，，|1619289|港口:全部|1619290|entityMap|0|LINK|mutability|MUTABLE|url|https://stackoverflow.com/users/11372593/guillaume-blaquiere^0|7|8|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|1K|8|@]|9|@$A|1L|B|1M|1|1N]]|C|$]]|$1|D|3|E|5|6|7|1O|8|@]|9|@]|C|$]]|$1|F|3|G|5|6|7|1P|8|@]|9|@]|C|$]]|$1|H|3|I|5|J|7|1Q|8|@]|9|@]|C|$]]|$1|K|3|L|5|M|7|1R|8|@]|9|@]|C|$]]|$1|N|3|O|5|M|7|1S|8|@]|9|@]|C|$]]|$1|P|3|Q|5|M|7|1T|8|@]|9|@]|C|$]]|$1|R|3|S|5|M|7|1U|8|@]|9|@]|C|$]]|$1|T|3|U|5|M|7|1V|8|@]|9|@]|C|$]]|$1|V|3|W|5|M|7|1W|8|@]|9|@]|C|$]]|$1|X|3|Y|5|M|7|1X|8|@]|9|@]|C|$]]|$1|Z|3|10|5|J|7|1Y|8|@]|9|@]|C|$]]|$1|11|3|L|5|M|7|1Z|8|@]|9|@]|C|$]]|$1|12|3|13|5|M|7|20|8|@]|9|@]|C|$]]|$1|14|3|15|5|M|7|21|8|@]|9|@]|C|$]]|$1|16|3|17|5|M|7|22|8|@]|9|@]|C|$]]|$1|18|3|19|5|M|7|23|8|@]|9|@]|C|$]]|$1|1A|3|1B|5|M|7|24|8|@]|9|@]|C|$]]|$1|1C|3|-4|5|6|7|25|8|@]|9|@]|C|$]]]|1D|$1E|$5|1F|1G|1H|C|$1I|1J]]]]

I implemented a similar strategy to <a href="https://stackoverflow.com/users/11372593/guillaume-blaquiere">guillaume blaquiere</a>'s answer above, but used tags instead of service accounts.
I have 4 Compute Engine resources and 3 Cloud SQL instances all in the same project, and my goal was to allow 1 specific server to access each of the 3 databases, and then the 4th server should be completely restricted from access the DBs. All my Compute Engine servers were previously created with the same service accounts, and I did not want to have to stop those resources to reassign service accounts.
I have previously assigned each Compute Engine server a unique tag (used for ingress traffic blocking), so I then set up the following rules:
<ol>
<li>Server 1 to DB 1 (...x2 for other two servers)</li>
</ol>
<ul>
<li>Direction: Egress</li>
<li>Action: Allow</li>
<li>Priority: 800</li>
<li>Targets: Specified target tags</li>
<li>Target tags: &lt;server 1 tag&gt;</li>
<li>Destination IP: &lt;DB 1 IP&gt;</li>
<li>Port: TCP 5432 (I'm using Postgres)</li>
</ul>
<ol start="4">
<li>Server 1 to DB 1</li>
</ol>
<ul>
<li>Direction: Egress</li>
<li>Action: Deny</li>
<li>Priority: 900</li>
<li>Targets: All instances</li>
<li>Destination IP: &lt;DB 1 IP&gt;, &lt;DB 2 IP&gt;, &lt;DB 3 IP&gt;</li>
<li>Port: all</li>
</ul>

Is there a way to restrict which compute engine instance can connect to my Cloud SQL instance? It looks like as long as the compute engine is connecting to my Cloud SQL instance using private IP, it goes thru.
Is there a way to restrict it by saying only allow those compute engine instances to connect to my Cloud SQL instance that has specified service account attached?

restrict connections to Cloud SQL MySQL instance

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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有没有一种方法来限制哪个计算引擎实例可以连接到我的Cloud实例？看起来，只要计算引擎使用私有IP连接到my实例，它就会通过。是否有一种方法可以通过只允许那些计算引擎实例连接到已附加了指定服务帐户的my实例来限制它？

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