A power shell script that sends a slack notification from a octopus deployment step

OctopusDeploymentSlackNotification.ps1

Set-StrictMode -Version Latest

$proxy = 'http://127.0.0.1:8080'
$apiKey = "###APIKEY###"
$uri = "https://hooks.slack.com/services/" + $apiKey

$deploymentEnvironment = $OctopusParameters["Octopus.Environment.Name"]
$deployByWho = $OctopusParameters["Octopus.Deployment.CreatedBy.DisplayName"]
$deployErrorDetail = $OctopusParameters["Octopus.Deployment.ErrorDetail"]
$deploymentVersion = $OctopusParameters["Octopus.Release.CurrentForEnvironment.Number"]
$deploymentVersion = $deploymentVersion + " -> " 
$deploymentVersion = $deploymentVersion + $OctopusParameters["Octopus.Release.Number"]

$emoji = ":smile:"
$channel = "#general"
$username = "OctoBot"

$text = "$deploymentEnvironment ($deploymentVersion)`rby $deployByWho"
$text = $text + "`rError: $deployErrorDetail"

$payload = @{
	"channel" = $channel
	"icon_emoji" = $emoji
	"text" = $text
	"username" = $username
    "link_names" = 1
}
$body = (ConvertTo-Json -Compress -InputObject $payload)

Invoke-WebRequest -Method Post -UseBasicParsing -Body $body -Proxy $proxy -Uri $uri | Out-Null