From 4a20c0f5f1cc8d3f0598ca57a5b360690aa36dd2 Mon Sep 17 00:00:00 2001
From: David Siaw <dsiaw@degica.com>
Date: Tue, 16 Jul 2024 16:41:39 +0900
Subject: [PATCH] fix dns in docker mode

---
 README.md         |  4 ++--
 lib/kaiser/cli.rb | 12 +++++++++---
 2 files changed, 11 insertions(+), 5 deletions(-)

diff --git a/README.md b/README.md
index 69ad582b..51f3a5f8 100644
--- a/README.md
+++ b/README.md
@@ -38,14 +38,14 @@ docker build -t degica/kaiser .
 And then add the following line to your `.bashrc` or `.bash_profile`
 
 ```
-alias kaiser='docker run --pull=always --rm -ti -v /var/run/docker.sock:/var/run/docker.sock -v $HOME/.kaiser:/root/.kaiser -v `pwd`:`pwd` -e CONTEXT_DIR="`pwd`" degicadev/kaiser'
+alias kaiser='docker run --pull=always --rm -ti -v /var/run/docker.sock:/var/run/docker.sock -v $HOME/.kaiser:/root/.kaiser -v `pwd`:`pwd` -e _KAISER_USER_HOME=$HOME -e _KAISER_POS=docker -e CONTEXT_DIR="`pwd`" degicadev/kaiser'
 ```
 
 Or if you use fish
 
 ```
 function kaiser
-  docker run --pull=always --rm -ti -v /var/run/docker.sock:/var/run/docker.sock -v $HOME/.kaiser:/root/.kaiser -v (pwd):(pwd) -e CONTEXT_DIR=(pwd) degicadev/kaiser $argv
+  docker run --pull=always --rm -ti -v /var/run/docker.sock:/var/run/docker.sock -v $HOME/.kaiser:/root/.kaiser -v (pwd):(pwd) -e _KAISER_USER_HOME=$HOME -e _KAISER_POS=docker -e CONTEXT_DIR=(pwd) degicadev/kaiser $argv
 end
 ```
 
diff --git a/lib/kaiser/cli.rb b/lib/kaiser/cli.rb
index 2082a54f..801c8c57 100644
--- a/lib/kaiser/cli.rb
+++ b/lib/kaiser/cli.rb
@@ -571,8 +571,14 @@ def ensure_setup
           jwilder/nginx-proxy"
       )
 
-      dnsconffile = "#{ENV['HOME']}/.kaiser/dnsconf"
-      File.write(dnsconffile, <<~HOSTS)
+      homedir_loc = ENV['HOME']
+      if ENV['_KAISER_POS'] == 'docker'
+        homedir_loc = ENV['_KAISER_USER_HOME']
+      end
+
+      innerdnsconffile = "#{ENV['HOME']}/.kaiser/dnsconf"
+      outerdnsconffile = "#{homedir_loc}/.kaiser/dnsconf"
+      File.write(innerdnsconffile, <<~HOSTS)
         log-queries
         no-resolv
         server=8.8.8.8
@@ -585,7 +591,7 @@ def ensure_setup
         "docker run -d
           --name #{Config.config[:shared_names][:dns]}
           --network #{Config.config[:networkname]}
-          -v #{dnsconffile}:/etc/dnsmasq.conf:ro
+          -v #{outerdnsconffile}:/etc/dnsmasq.conf:ro
           degica/dnsmasq
         "
       )