Add support for nss-snapd

hook-tests/002-setup_user.test

@@ -5,3 +5,7 @@ set -e
 for prefix in passwd group shadow; do
     grep -q "^${prefix}:.*extrausers" etc/nsswitch.conf
 done
+
+for prefix in passwd group; do
+    grep -q "^${prefix}:.*snapd" etc/nsswitch.conf
+done

hooks/002-setup_user.chroot

@@ -24,8 +24,8 @@ for name in gshadow shadow; do
 done
 
 # Enable libnss-extrusers
-sed -i 's/^passwd:.*files/\0 extrausers/' /etc/nsswitch.conf
-sed -i 's/^group:.*files/\0 extrausers/' /etc/nsswitch.conf
+sed -i 's/^passwd:.*files/\0 extrausers snapd/' /etc/nsswitch.conf
+sed -i 's/^group:.*files/\0 extrausers snapd/' /etc/nsswitch.conf
 sed -i 's/^shadow:.*files/\0 extrausers/' /etc/nsswitch.conf
 
 # Enable pam configuration for extrausers

snapcraft.yaml

@@ -48,6 +48,13 @@ parts:
       copyright: usr/share/doc/plymouth-theme-ubuntu-core/copyright
     stage:
       - -README.md
+  nss-snapd:
+    plugin: make
+    source: https://github.com/canonical/nss-snapd.git
+    source-type: git
+    make-parameters:
+      - prefix=/usr
+      - libdir=/usr/lib/${CRAFT_ARCH_TRIPLET_BUILD_FOR}
   bootstrap:
     after:
       - base