From 610b20c1ff24c3ac6312c9d93e8fbc79876df8f0 Mon Sep 17 00:00:00 2001
From: Owen <owen@txv.io>
Date: Sat, 17 Jan 2026 12:21:18 -0800
Subject: [PATCH] Use the right driver

Fixes #2254
---
 install/containers.go | 41 +++++++++++++++++++++++++++++++++++++++++
 install/crowdsec.go   |  4 ++--
 install/main.go       | 11 ++++++++++-
 3 files changed, 53 insertions(+), 3 deletions(-)

diff --git a/install/containers.go b/install/containers.go
index 464186c2..333fd890 100644
--- a/install/containers.go
+++ b/install/containers.go
@@ -210,6 +210,47 @@ func isDockerRunning() bool {
 	return true
 }
 
+func isPodmanRunning() bool {
+	cmd := exec.Command("podman", "info")
+	if err := cmd.Run(); err != nil {
+		return false
+	}
+	return true
+}
+
+// detectContainerType detects whether the system is currently using Docker or Podman
+// by checking which container runtime is running and has containers
+func detectContainerType() SupportedContainer {
+	// Check if we have running containers with podman
+	if isPodmanRunning() {
+		cmd := exec.Command("podman", "ps", "-q")
+		output, err := cmd.Output()
+		if err == nil && len(strings.TrimSpace(string(output))) > 0 {
+			return Podman
+		}
+	}
+
+	// Check if we have running containers with docker
+	if isDockerRunning() {
+		cmd := exec.Command("docker", "ps", "-q")
+		output, err := cmd.Output()
+		if err == nil && len(strings.TrimSpace(string(output))) > 0 {
+			return Docker
+		}
+	}
+
+	// If no containers are running, check which one is installed and running
+	if isPodmanRunning() && isPodmanInstalled() {
+		return Podman
+	}
+
+	if isDockerRunning() && isDockerInstalled() {
+		return Docker
+	}
+
+	return Undefined
+}
+
 // executeDockerComposeCommandWithArgs executes the appropriate docker command with arguments supplied
 func executeDockerComposeCommandWithArgs(args ...string) error {
 	var cmd *exec.Cmd
diff --git a/install/crowdsec.go b/install/crowdsec.go
index 2e388e92..401ef215 100644
--- a/install/crowdsec.go
+++ b/install/crowdsec.go
@@ -93,7 +93,7 @@ func installCrowdsec(config Config) error {
 
 	if checkIfTextInFile("config/traefik/dynamic_config.yml", "PUT_YOUR_BOUNCER_KEY_HERE_OR_IT_WILL_NOT_WORK") {
 		fmt.Println("Failed to replace bouncer key! Please retrieve the key and replace it in the config/traefik/dynamic_config.yml file using the following command:")
-		fmt.Println("	docker exec crowdsec cscli bouncers add traefik-bouncer")
+		fmt.Printf("	%s exec crowdsec cscli bouncers add traefik-bouncer\n", config.InstallationContainerType)
 	}
 
 	return nil
@@ -117,7 +117,7 @@ func GetCrowdSecAPIKey(containerType SupportedContainer) (string, error) {
 	}
 
 	// Execute the command to get the API key
-	cmd := exec.Command("docker", "exec", "crowdsec", "cscli", "bouncers", "add", "traefik-bouncer", "-o", "raw")
+	cmd := exec.Command(string(containerType), "exec", "crowdsec", "cscli", "bouncers", "add", "traefik-bouncer", "-o", "raw")
 	var out bytes.Buffer
 	cmd.Stdout = &out
 
diff --git a/install/main.go b/install/main.go
index a231da2d..6f4d4f35 100644
--- a/install/main.go
+++ b/install/main.go
@@ -229,7 +229,16 @@ func main() {
 					}
 				}
 
-				config.InstallationContainerType = podmanOrDocker(reader)
+				// Try to detect container type from existing installation
+				detectedType := detectContainerType()
+				if detectedType == Undefined {
+					// If detection fails, prompt the user
+					fmt.Println("Unable to detect container type from existing installation.")
+					config.InstallationContainerType = podmanOrDocker(reader)
+				} else {
+					config.InstallationContainerType = detectedType
+					fmt.Printf("Detected container type: %s\n", config.InstallationContainerType)
+				}
 
 				config.DoCrowdsecInstall = true
 				err := installCrowdsec(config)