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@@ -7,6 +7,7 @@ use Windows named pipes from the Windows Subsystem for Linux (WSL).
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For example, you can:
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* Connect to Docker for Windows from the Linux Docker client in WSL
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* Connect to MySQL Server running as a Windows service
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* Connect interactively to a Hyper-V Linux VM's serial console
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* Use gdb to connect to debug the kernel of a Hyper-V Linux VM
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@@ -105,6 +106,45 @@ $ sudo adduser <my_user> docker
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Then open a new WSL window to reset your group membership.
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## Connect to MySQL Server running as a Windows service
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If you run MySQL Server as a Windows service, you can configure it to
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communicate through TCP, named pipes or shared memory. If you use named
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pipes, connecting to MySQL from WSL is very similar to connecting
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to Docker.
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The `mysqld-relay` script is designed to be run in a `sudo` shell.
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Before creating the relay, it will try to configure your environment
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(if it has not been configured yet) by:
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* creating `/var/run/mysqld/`,
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* creating a `mysql` group, and
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* adding your user account to the `mysql` group.
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You can of course pull out just the npiperelay command if you don't
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need any of the above checks.
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Note that if you need to enter a password for sudo, the following
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command will fail because of the lack of password input:
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```bash
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$ sudo mysqld-relay &
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```
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In that case, you can run it like this:
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```bash
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user@machine:~$ sudo -s
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[sudo] password for user:
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root@machine:~# mysqld-relay &
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root@machine:~# exit
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user@machine:~$ _
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```
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Now you can use the Linux `mysql` command line client or any other
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Linux process that expects to talk to MySQL Server through
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`/var/run/mysqld/mysqld.sock`.
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## Connecting to a Hyper-V Linux VM's serial console
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If you have a Linux VM configured in Hyper-V, you may wish to use its serial
@@ -0,0 +1,21 @@
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#!/bin/sh
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if [ -z "${SUDO_USER+x}" ]; then
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echo "mysqld-relay must be run via 'sudo'"
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exit 1
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fi
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if [ ! -e /var/run/mysqld ]; then
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mkdir /var/run/mysqld
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fi
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if [ ! $(getent group exists mysql) ]; then
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groupadd mysql
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fi
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if $(id -Gn $SUDO_USER | grep -qv '\bmysql\b'); then
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usermod -aG mysql $SUDO_USER
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echo "*** Log out and back in to enable 'mysql' group membership ***"
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fi
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exec socat UNIX-LISTEN:/var/run/mysqld/mysqld.sock,fork,group=mysql,umask=007 EXEC:"npiperelay.exe -ep -s //./pipe/MYSQL",nofork
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