tailscale: add to PATH; add script to switch tailnets

ID

f8a0c12

date

2026-05-15 12:50:52+00:00

author

Alex Chan <alexc@tailscale.com>

parent

dd014bb

message

tailscale: add to PATH; add script to switch tailnets

changed files

3 files, 36 additions, 1 deletion

config.fish
tailscale/README.md
tailscale/ensure_on_tailnet.sh

Changed files

config.fish (6688) → config.fish (6730)

diff --git a/config.fish b/config.fish
index 20a352c..eaecfd1 100644
--- a/config.fish
+++ b/config.fish
@@ -56,6 +56,7 @@ prepend_to_path ~/repos/scripts/images
 prepend_to_path ~/repos/scripts/installers
 prepend_to_path ~/repos/scripts/macos
 prepend_to_path ~/repos/scripts/python
+prepend_to_path ~/repos/scripts/tailscale
 prepend_to_path ~/repos/scripts/terraform
 prepend_to_path ~/repos/scripts/text
 prepend_to_path ~/repos/scripts/web

tailscale/README.md (1894) → tailscale/README.md (2307)

diff --git a/tailscale/README.md b/tailscale/README.md
index 566f689..bcc20ac 100644
--- a/tailscale/README.md
+++ b/tailscale/README.md
@@ -18,6 +18,10 @@ folder_name = "tailscale"
 
 scripts = [
     {
+        "usage": "ensure_on_tailnet.sh TAILNET_NAME",
+        "description": "ensure I'm connected to a particular tailnet on my work computer"
+    },
+    {
         "usage": "gostress PACKAGE TEST_NAME",
         "description": "run a test with Go’s stress utility",
     },
@@ -40,6 +44,15 @@ cog_helpers.create_description_table(folder_name=folder_name, scripts=scripts)
 ]]]-->
 <dl>
   <dt>
+    <a href="https://github.com/alexwlchan/scripts/blob/main/tailscale/ensure_on_tailnet.sh">
+      <code>ensure_on_tailnet.sh TAILNET_NAME</code>
+    </a>
+  </dt>
+  <dd>
+    ensure I'm connected to a particular tailnet on my work computer
+  </dd>
+
+  <dt>
     <a href="https://github.com/alexwlchan/scripts/blob/main/tailscale/gostress">
       <code>gostress PACKAGE TEST_NAME</code>
     </a>
@@ -75,4 +88,4 @@ cog_helpers.create_description_table(folder_name=folder_name, scripts=scripts)
     run a CLi command on a local instance of tailscaled
   </dd>
 </dl>
-<!-- [[[end]]] (sum: Bnz6W8Jdcg) -->
\ No newline at end of file
+<!-- [[[end]]] (sum: 4hnXIiewO2) -->
\ No newline at end of file

tailscale/ensure_on_tailnet.sh (0) → tailscale/ensure_on_tailnet.sh (431)

diff --git a/tailscale/ensure_on_tailnet.sh b/tailscale/ensure_on_tailnet.sh
new file mode 100755
index 0000000..9354ce7
--- /dev/null
+++ b/tailscale/ensure_on_tailnet.sh
@@ -0,0 +1,21 @@
+#!/usr/bin/env bash
+
+set -o errexit
+set -o nounset
+
+if (( $# == 0 )); then
+  echo "Usage: $0 TAILNET" >&2
+  exit 1
+fi
+
+if [[ $(hostname) != "Alexs-MacBook-Pro.local" ]]; then
+  exit 0
+fi
+
+target_tailnet="$1"
+current_tailnet="$(tailscale status --json | jq -r .CurrentTailnet.Name)"
+
+if [[ "$current_tailnet" != "$target_tailnet" ]]; then
+  print_info "-> tailscale switch '$target_tailnet'"
+  tailscale switch "$target_tailnet"
+fi