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How to set up Visual Studio Code locally and connect to remote system

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setup-vscode

How to set up Visual Studio Code locally and connect to remote system

Prerequisites

  • Get your IBM i credentials from Yoda
  • Follow the instructions to set up ACS

Installs

Install the following on your Windows computer:

Set up Visual Studio Code

When you see %%IBM i Profile%% in the instructions, replace with your IBM i user profile (replace the % too).
When you see %%Windows Username%% in the instructions, replace with your Windows user name (replace the %).
Whenever you see shell commands that you need to enter, they will start with "$". This is the command prompt that you will see in the terminal and is not part of the command; do not type the "$" as part of the commands!

Set the default shell

Open Visual Studio Code.
Press F1 to open the command prompt (displays at the top of the screen).
Type "Terminal: Select Default Shell" in the search bar and press Enter.
Select "Git Bash" from the drop-down list.

Setting up SSH

Generate local SSH key

Press Ctrl+` to open the terminal inside Visual Studio Code (displays at the bottom of the screen).

The ` should be the key above the Tab key

Enter the following command to change your current working directory to your home:
$ cd ~
Print your current working directory with this command:
$ pwd
This should print something like c/Users/YourWindowsUsername

Enter the following command to generate an SSH key:
$ ssh-keygen -t rsa -b 4096 -f ~/.ssh/id_rsa-ocean-ssh
Press Enter twice to leave the passphrase blank

ssh-keygen is the command to run (generate key)
-t rsa specifies the type of key to create
-b 4096 specifies the number of bits in the key
-f ~/.ssh/id_rsa-ocean-ssh specifies the filename of the key

Copy your public SSH key to IBM i

SSH copy

If password authentication is allowed you can copy your public key using SSH.
Enter the following command to copy your public key to the OC Skunks IBM i:
$ ssh-copy-id -i ~/.ssh/id_rsa-ocean-ssh %%IBM i Profile%%@OCSKUNKS.oceanusergroup.org
When prompted, enter your IBM i password.

ssh-copy-id is the command to run (copy id)
-i ~/.ssh/id_rsa-ocean-ssh specifies the identity file
profile@OCSKUNKS.oceanusergroup.org is the user and remote server

ACS

You can use ACS to copy your public key to IBM i.
Open System Configurations, highlight your system, and press Edit.
Select the SSH Key setup tab, and press the "Copy SSH key(s) to server" button.

SQL

CALL QSYS2.IFS_WRITE(
    PATH_NAME =>'/home/{{user_profile}}/.ssh/authorized_keys', 
    LINE => 'ssh-rsa [...]== user@device', 
    OVERWRITE => 'APPEND', 
    END_OF_LINE => 'NONE'
);

Other

Use RDi, nano, or some other editor to add the public key to the authorized_keys file on the server. The authorized_keys file is located here: /home/YOUR_PROFILE/.ssh

Test the SSH connection

Enter the following command to create an SSH connection to the OC Skunks IBM i:
$ ssh %%IBM i User%%@OCSKUNKS.oceanusergroup.org -i ~/.ssh/id_rsa-ocean-ssh
You should see a "bash-4.4$" prompt.
$ exit will disconnect the connection.

Editing remote source files

Download/Configure the SSH FS extension

Press Ctrl+Shift+X to open the Extensions pane (or click the icon in left-hand menu).
Type "SSH FS" in the search box.
Press Install for SSH FS extension.

Press F1 to open the command prompt.
Type "SSH FS: create a SSH FS configuration" and select the link from the drop-down list.
Enter the following configuration:

  • Name = "ocean_skunks_ssh_fs"
  • Location = "Global settings.json"
    Press Save button

On the next screen enter the following configuration:

  • Label = "OCEAN Skunks /home"
  • Group = "OCEAN"
  • Host = "OCSKUNKS.oceanusergroup.org"
  • Root = "/home/%%IBM i Profile%%"
  • Username = "%%IBM i Profile%%"
  • Private key = "c:\Users\%%Windows Username%%\.ssh\id_rsa-ocean-ssh"
    Press Save button

Open/Edit remote files

Press Ctrl+Shift+E to open the Explorer pane.
Open the SSH FILE SYSTEMS group at the bottom.
Right-Click on the "OCEAN Skunks /home" connection.
Select "Connect as Workspace folder".

Troubleshooting

If you are having issues (i.e. SSH is still asking for a password) check the file permissions:
chmod 755 ~
chmod 700 ~/.ssh
chmod 600 ~/.ssh/id_rsa
chmod 600 ~/.ssh/id_rsa.pub
chmod 600 ~/.ssh/authorized_keys

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How to set up Visual Studio Code locally and connect to remote system