From 2d25332ee18e690d3ee4b865e53d748f460f8ab1 Mon Sep 17 00:00:00 2001
From: Erich Eckner <git@eckner.net>
Date: Wed, 20 Sep 2017 13:54:23 +0200
Subject: hadoop neu

---
 hadoop/hadoop.install | 32 ++++++++++++++++++++++++++++++++
 1 file changed, 32 insertions(+)
 create mode 100644 hadoop/hadoop.install

(limited to 'hadoop/hadoop.install')

diff --git a/hadoop/hadoop.install b/hadoop/hadoop.install
new file mode 100644
index 00000000..a7b1b075
--- /dev/null
+++ b/hadoop/hadoop.install
@@ -0,0 +1,32 @@
+post_install() {
+  getent group 'hadoop' >/dev/null 2>&1 || groupadd -r 'hadoop' >/dev/null
+  getent passwd 'hadoop' /dev/null 2>&1 || useradd -r -g 'hadoop' -d '/etc/hadoop' 'hadoop' >/dev/null
+
+  if [ ! -d '/etc/hadoop/.ssh' ] ; then
+    mkdir -p '/etc/hadoop/.ssh'
+  fi
+
+  chown -R 'hadoop:hadoop' '/etc/hadoop'
+
+  if [ ! -e '/etc/hadoop/.ssh/id_rsa' ] ; then
+    su -s '/usr/bin/bash' -c "ssh-keygen -t rsa -N '' -f ~/.ssh/id_rsa" - 'hadoop'
+    su -s '/usr/bin/bash' -c "cat ~/.ssh/id_rsa.pub >> ~/.ssh/authorized_keys" - 'hadoop'
+  fi
+
+  echo 'An SSH key-pair has been created. Depending on your SSHD configuration you may'
+  echo 'need to connect to localhost as user "hadoop" to make sure Hadoop can connect.'
+  echo ''
+  echo '$ ssh localhost'
+
+  echo ''
+  echo '===> Read https://wiki.archlinux.org/index.php/Hadoop for more information'
+}
+
+post_upgrade() {
+  :
+}
+
+post_remove() {
+  getent passwd 'hadoop' >/dev/null 2>&1 && userdel 'hadoop' >/dev/null
+  getent group 'hadoop' >/dev/null 2>&1 && groupdel 'hadoop' >/dev/null
+}
-- 
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