Merge branch 'main' into v1

* main:
  fix: Rename TC_HOST environment variable to TESTCONTAINERS_HOST_OVERRIDE (#2536)

daemonhost.go

@@ -16,7 +16,7 @@ import (
 func DaemonHost(ctx context.Context) (string, error) {
 	var hostCache string
 
-	host, exists := os.LookupEnv("TC_HOST")
+	host, exists := os.LookupEnv("TESTCONTAINERS_HOST_OVERRIDE")
 	if exists {
 		hostCache = host
 		return hostCache, nil

docker.go

@@ -349,7 +349,7 @@ func (c *DockerContainer) GetImage() string {
 
 // Host gets host (ip or name) of the docker daemon where the container port is exposed
 // Warning: this is based on your Docker host setting. Will fail if using an SSH tunnel
-// You can use the "TC_HOST" env variable to set this yourself
+// You can use the "TESTCONTAINERS_HOST_OVERRIDE" env variable to set this yourself
 func (c *DockerContainer) Host(ctx context.Context) (string, error) {
 	host, err := DaemonHost(ctx)
 	if err != nil {

docs/features/networking.md

@@ -45,7 +45,7 @@ It is normally advisable to use `Host` and `MappedPort` together when constructi
 <!--/codeinclude-->
 
 !!! info
-    Setting the `TC_HOST` environment variable overrides the host of the docker daemon where the container port is exposed. For example, `TC_HOST=172.17.0.1`.
+    Setting the `TESTCONTAINERS_HOST_OVERRIDE` environment variable overrides the host of the docker daemon where the container port is exposed. For example, `TESTCONTAINERS_HOST_OVERRIDE=172.17.0.1`.
 
 ## Exposing host ports to the container
 

docs/system_requirements/using_podman.md

@@ -3,7 +3,7 @@
 _Testcontainers for Go_ supports the use of Podman (rootless or rootful) instead of Docker.
 
 In most scenarios no special setup is required in _Testcontainers for Go_.
-_Testcontainers for Go_ will automatically discover the socket based on the `DOCKER_HOST` or the `TC_HOST` environment variables.
+_Testcontainers for Go_ will automatically discover the socket based on the `DOCKER_HOST` environment variables.
 Alternatively you can configure the host with a `.testcontainers.properties` file.
 The discovered Docker host is taken into account when starting a reaper container.
 The discovered socket is used to detect the use of Podman.