Skip to main content

AWS PowerShell check if tag exist

How to check if a Tag exist on an instance?

How to change the value of the tag, if tag exist?

Code below shows how to check tags on AWS instances using PowerShell.

 

The script will also check if the tag exists and change the value to a different value.

Sample scenario where the script can be used: Example: the tag can be "Web_Server", Value "In Progress"

Then once the instance is ready, the tag can be changed to "Web_Server", Value "Online"

 

$accesskey = 'AWS-Access-Key'

$secretkey = 'AWS-Secret-Key'

$dregion =  'eu-west-1' #change the region as required

 

#instances to be checked

#repace the value with the actual instance-id

$array_prefix_instanceID = @(

"i-04e5er7ac566vc8",

"i-0c3c3cerbc3165685vc",

"i-0ecc355gf0aa5758g"

)

 

#Assume value of the tag

#Change as required / script will look for the value Yes

$value="Yes"

 

#Tag to look for is: "Client_Web_Server"

 

for ($i=0; $i -lt 3; $i++) {

$get_d_tag = Get-EC2Tag -AccessKey $accesskey  -secretkey $secretkey -Region $dregion | ? { $_.ResourceID -eq $array_prefix_instanceID[$i] -and $_.Key -eq 'Client_Web_Server' }

$the_tag_length= $get_d_tag.length

 

#uncomment below if you need to see the output

#if the output is 0 (number zero) the Tag "Client_Web_Server" is missing or cannot be found

#write-host $the_tag_length

 

if ( "$the_tag_length" -eq 0) {

#uncomment below if you need to see the output

#write-host "Nothing"

 

#set the key or tag to be checked

$Tags = @( @{key="Client_Web_Server";value=$Value})

 

#Code below will create the tag

New-EC2Tag -AccessKey $accesskey -SecretKey $secretkey -Region $dregion -ResourceId $array_prefix_instanceID[$i] -Tags $Tags

 

} elseif ("$the_tag_length" -ne 0) {

    

    $instanceid = $_.ResourceID -eq $array_prefix_instanceID[$i]

 

    #Tag exist but need to check what is the value

    $tagvalue = (Get-EC2Tag -AccessKey $accesskey  -secretkey $secretkey -Region $dregion | ? { $_.ResourceID -eq $array_prefix_instanceID[$i] -and $_.Key -eq 'Client_Web_Server' }).Value

    #change the value to lower caps  for comparing purposes

    $tagvalue = "$tagvalue".ToLower()

 

    #change the value as required

    #if ("$tagvalue" -eq  "no" -or "false")

    if ("$tagvalue" -ne  "yes")

     {

 

     #Change the value of the tag to "Yes" / change as required

     $Tags = @( @{key="Client_Web_Server";value=$Value})

     New-EC2Tag -AccessKey $accesskey -SecretKey $secretkey -Region $dregion -ResourceId $array_prefix_instanceID[$i] -Tags $Tags

 

     #create a copy of the instances that the value has been changed

      write-output $array_prefix_instanceID[$i] >> c:\change_logs\client_server_monitoring_set.txt

      }

 }

}

Cheers. Till next time.

================================

Free Android Apps:

Click  links below to find out more:

Excel Keyboard guide:

https://play.google.com/store/apps/details?id=chrisjoms.myexcelapplicationguide

Heaven's Dew Fall  Prayer app for Android :

https://play.google.com/store/apps/details?id=soulrefresh.beautiful.prayer

Catholic Rosary Guide  for Android:

Pray the Rosary every day, countless blessings will be showered upon your life if you recite the Rosary faithfully. 

https://play.google.com/store/apps/details?id=com.myrosaryapp

Divine Mercy Chaplet Guide (A Powerful prayer) BFF = Be Filled Faith:

https://play.google.com/store/apps/details?id=com.dmercyapp
Labels:

Comments

Post a Comment

Popular posts from this blog

Notepad++ convert multiple lines to a single line and vice versa

Notepad++ is an awesome text editing tool, it can accept regex to process the text data. If the data is in a “.csv” format or comma separated values which is basically just a text file that can either be opened using a text editor, excel or even word. Notepad++ can process the contents of the file using regex. Example if the data has multiple rows or lines, and what is needed is to convert the whole lines of data into a single line. Notepad++ can easily do it using regex. However, if the data is on a single line and it needs to be converted into multiple lines or rows then regex can also be used for this case. Here’s an example on how to convert multiple rows or lines into a single line. Example data: Multiple rows, just a sample data. Press Ctrl+H, and  on "Find what" type: [\r\n]+ and on "Replace with" type with: , (white space) --white space is needed if need to have a space in between the data. See image below, "Regular Expression" must be se
1 comment
Read more

WMIC get computer name

WMIC get computer model, manufacturer, computer name and  username. WMIC is a command-line tool and that can generate information about computer model, its manufacturer, its username and other informations depending on the parameters provided. Why would you need a command line tool if there’s a GUI to check? If you have 20 or 100 computers, or even more. It’s quite a big task just checking the GUI to check the computer model and username. If you have remote computers, you need to delegate someone in the remote office or location to check. Or you can just write a batch file or script to automate the task. Here’s the code below on how get computer model, manufacturer and the username. Open an elevated command prompt and type:     wmic computersystem get "Model","Manufacturer", "Name", "UserName" Just copy and paste the code above, the word “computersystem” does not need to be change to a computer name. A
Post a Comment
Read more

How to check office version from command line

The are quite a few ways to check office version it can be done via registry, PowerShell or VBScript and of course, good old command line can also do it. Checking Windows office version whether it is Office 2010, Office, 2013, Office 2016 or other version is quite important to check compatibility of documents; or just a part of software inventory. For PowerShell this simple snippet can check the office version: $ol = New-Object -ComObject Excel.Application $ol . Version The command line option will tell you where’s the path located; the result will also tell whether office is 32-bit, 64-bit and of course the version of the office as well. Here’s the command that will check the office version and which program directory the file is located which will tell whether it’s 32-bit or 64-bit. Command to search for Excel.exe: DIR C:\ /s excel.exe | find   /i "Directory of"  Above command assumes that program files is on  C: drive. Sample Outpu
Post a Comment
Read more