From 84e915a779b456b51a5368d6b0ec8d095ffedeb9 Mon Sep 17 00:00:00 2001
From: Jörg Thalheim <joerg@thalheim.io>
Date: Fri, 22 Jun 2018 12:41:29 +0100
Subject: cntr: init at 1.2.0

---
 pkgs/applications/virtualization/cntr/default.nix | 24 +++++++++++++++++++++++
 pkgs/top-level/all-packages.nix                   |  2 ++
 2 files changed, 26 insertions(+)
 create mode 100644 pkgs/applications/virtualization/cntr/default.nix

(limited to 'pkgs')

diff --git a/pkgs/applications/virtualization/cntr/default.nix b/pkgs/applications/virtualization/cntr/default.nix
new file mode 100644
index 00000000000..79dbddfab55
--- /dev/null
+++ b/pkgs/applications/virtualization/cntr/default.nix
@@ -0,0 +1,24 @@
+{ stdenv, rustPlatform, fetchFromGitHub }:
+
+rustPlatform.buildRustPackage rec {
+  name = "cntr-${version}";
+  version = "1.2.0";
+
+  src = fetchFromGitHub {
+    owner = "Mic92";
+    repo = "cntr";
+    rev = version;
+    sha256 = "0lmbsnjia44h4rskqkv9yc7xb6f3qjgbg8kcr9zqnr7ivr5fjcxg";
+  };
+
+  cargoSha256 = "0gainr5gfy0bbhr6078zvgx0kzp53slxjp37d3da091ikgzgfn51";
+
+  meta = with stdenv.lib; {
+    description = "A container debugging tool based on FUSE";
+    homepage = https://github.com/Mic92/cntr;
+    license = licenses.mit;
+    # aarch64 support will be fixed soon
+    platforms = [ "x86_64-linux" ];
+    maintainers = [ maintainers.mic92 ];
+  };
+}
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 07068cc2917..1175915d6f9 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -15994,6 +15994,8 @@ with pkgs;
   cni = callPackage ../applications/networking/cluster/cni {};
   cni-plugins = callPackage ../applications/networking/cluster/cni/plugins.nix {};
 
+  cntr = callPackage ../applications/virtualization/cntr { };
+
   communi = libsForQt5.callPackage ../applications/networking/irc/communi { };
 
   confclerk = callPackage ../applications/misc/confclerk { };
-- 
cgit 1.4.1


From f10b935f84d068f616f335ad75a99f13af35337a Mon Sep 17 00:00:00 2001
From: Jörg Thalheim <joerg@thalheim.io>
Date: Fri, 22 Jun 2018 12:12:40 +0100
Subject: breakpointHook: add for debugging failing builds

Usuage: Add breakpointHook to your `buildInputs` like this:

  stdenv.mkDerivation rec {
    # ...
    buildInputs = [ breakpointHook ];
  });

When the build fails as show in this example:

  pkgs.hello.overrideAttrs (old: {
    buildInputs = [ breakpointHook ];
    postPatch = ''
      false
    '';
  });

It will halt execution printing the following message:

build failed in patchPhase with exit code 1
To attach to this build run the following command as root:

   cntr attach -t command cntr-/nix/store/ynyb4n82x2r7sldd58pbb405jdqh5f00-hello-2.10

Installing cntr and running the command will provide shell access to the
build sandbox of failed build:

sudo cntr attach -t command cntr-/nix/store/ynyb4n82x2r7sldd58pbb405jdqh5f00-hello-2.10
WARNING: bad ownership on /nix/var/nix/profiles/per-user/root, should be 1000
[nixbld@localhost:/var/lib/cntr]$

At /var/lib/cntr the sandbox filesystem is mounted. All commands and
files of the system are still accessible within the shell.
To execute commands from the sandbox use the `cntr exec` subcommand.
---
 pkgs/build-support/setup-hooks/breakpoint-hook.sh | 9 +++++++++
 pkgs/top-level/all-packages.nix                   | 3 +++
 2 files changed, 12 insertions(+)
 create mode 100644 pkgs/build-support/setup-hooks/breakpoint-hook.sh

(limited to 'pkgs')

diff --git a/pkgs/build-support/setup-hooks/breakpoint-hook.sh b/pkgs/build-support/setup-hooks/breakpoint-hook.sh
new file mode 100644
index 00000000000..6bef786ac3a
--- /dev/null
+++ b/pkgs/build-support/setup-hooks/breakpoint-hook.sh
@@ -0,0 +1,9 @@
+breakpointHook() {
+    local red='\033[0;31m'
+    local no_color='\033[0m'
+
+    echo -e "${red}build failed in ${curPhase} with exit code ${exitCode}${no_color}"
+    printf "To attach install cntr and run the following command as root:\n\n"
+    sh -c "echo '   cntr attach -t command cntr-${out}'; while true; do sleep 99999999; done"
+}
+failureHooks+=(breakpointHook)
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 1175915d6f9..5a345407705 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -977,6 +977,9 @@ with pkgs;
 
   bruteforce-luks = callPackage ../tools/security/bruteforce-luks { };
 
+  breakpointHook = assert stdenv.isLinux;
+    makeSetupHook { } ../build-support/setup-hooks/breakpoint-hook.sh;
+
   bsod = callPackage ../misc/emulators/bsod { };
 
   btrfs-progs = callPackage ../tools/filesystems/btrfs-progs { };
-- 
cgit 1.4.1