Create an initial encfs cookbook

Usage: Add the kosmos_encfs::default recipe to the run list of a node.
Creating the encrypted directory will keep it mounted. After a reboot,
start the encfs service and enter the password:

```
$ systemctl start encfs
encfs password:
```

For now postgresql@12-main is a hardcoded dependency of the encfs
Systemd unit that is automatically started once the user inputs the
correct password. This list of dependency will need to be different for
every server, based on the services it is running

data_bags/credentials/encfs.json

@@ -0,0 +1,10 @@
+{
+  "id": "encfs",
+  "password": {
+    "encrypted_data": "+1Q3ojHS0lJgE7lFv3zEv653UHgRiuuuxBQQpfa+XrKaeQms2Kiw\n",
+    "iv": "sMb1a/NmjcAW62Uf\n",
+    "auth_tag": "n6jpD1fGoqidgMHRuL3K+A==\n",
+    "version": 3,
+    "cipher": "aes-256-gcm"
+  }
+}

site-cookbooks/kosmos-postgresql/files/encfs.service

@@ -1,10 +0,0 @@
-[Unit]
-Description=EncFS for PostgreSQL data dir
-Before=postgresql@12-main.service
-[Service]
-Type=oneshot
-RemainAfterExit=yes
-ExecStart=/usr/local/bin/mount_pg_encfs
-ExecStop=/bin/umount /var/lib/postgresql
-[Install]
-WantedBy=multi-user.target

site-cookbooks/kosmos-postgresql/recipes/replica.rb

@@ -29,7 +29,6 @@ postgresql_service = "postgresql@#{postgresql_version}-main"
 
 postgresql_custom_server postgresql_version do
   role "replica"
-  encfs true
 end
 
 service postgresql_service do

site-cookbooks/kosmos-postgresql/resources/server.rb

@@ -2,16 +2,23 @@ resource_name :postgresql_custom_server
 
 property :postgresql_version, String, required: true, name_property: true
 property :role, String, required: true # Can be primary or replica
-property :encfs, [TrueClass, FalseClass], default: false
 
 action :create do
   postgresql_version = new_resource.postgresql_version
-  postgresql_data_dir = data_dir(postgresql_version)
+  postgresql_data_dir = "/mnt/data/postgresql/#{postgresql_version}/main"
   postgresql_service = "postgresql@#{postgresql_version}-main"
 
   node.override['build-essential']['compile_time'] = true
   include_recipe 'build-essential::default'
 
+  directory postgresql_data_dir do
+    owner "postgres"
+    group "postgres"
+    mode "0750"
+    recursive true
+    action :create
+  end
+
   package("libpq-dev") { action :nothing }.run_action(:install)
 
   chef_gem 'pg' do
@@ -38,46 +45,6 @@ action :create do
     action :install
   end
 
-  postgresql_user "replication" do
-    action :create
-    replication true
-    password postgresql_data_bag_item['replication_password']
-  end
-
-  if new_resource.encfs
-    # FIXME: encfs always runs a configuration assistant when creating a new
-    # volume, so this needs to be done manually:
-    #    systemctl stop postgresql@12-main
-    #    mv /var/lib/postgresql /var/lib/postgresql.old
-    #    encfs /var/lib/postgresql_encrypted /var/lib/postgresql --public
-    # Pick p (paranoia mode) and enter the password from the data bag twice
-    #    mv /var/lib/postgresql/* /var/lib/postgresql/
-    #    systemctl start postgresql@12-main
-
-    package "encfs"
-
-    template "/usr/local/bin/mount_pg_encfs" do
-      source "mount_pg_encfs.erb"
-      mode "0700"
-      variables password: postgresql_data_bag_item["encfs_password"]
-    end
-
-    execute "systemctl daemon-reload" do
-      command "systemctl daemon-reload"
-      action :nothing
-    end
-
-    # The service will automatically mount the encrypted volume on startup
-    cookbook_file "/lib/systemd/system/encfs_postgresql.service" do
-      source "encfs.service"
-      notifies :run, "execute[systemctl daemon-reload]", :delayed
-    end
-
-    service "encfs_postgresql" do
-      action [:enable]
-    end
-  end
-
   shared_buffers = if node['memory']['total'].to_i / 1024 < 1024 # > 1GB RAM
                      "128MB"
                    else # >= 1GB RAM, use 25% of total RAM
@@ -91,6 +58,7 @@ action :create do
     dynamic_shared_memory_type: "posix",
     timezone: "UTC", # default is GMT
     listen_addresses: "0.0.0.0",
+    data_directory: postgresql_data_dir
   }
 
   if new_resource.role == "replica"
@@ -129,6 +97,13 @@ action :create do
     additional_config additional_config
     notifies :reload, "service[#{postgresql_service}]"
   end
+
+  postgresql_user "replication" do
+    action :create
+    replication true
+    password postgresql_data_bag_item['replication_password']
+  end
+
 end
 
 action_class do

site-cookbooks/kosmos-postgresql/templates/mount_pg_encfs.erb

@@ -1,3 +0,0 @@
-#!/bin/sh
-
-/bin/echo "<%= @password %>" | encfs /var/lib/postgresql_encrypted /var/lib/postgresql --public -S

site-cookbooks/kosmos_encfs/.gitignore

@@ -0,0 +1,22 @@
+.vagrant
+*~
+*#
+.#*
+\#*#
+.*.sw[a-z]
+*.un~
+
+# Bundler
+Gemfile.lock
+gems.locked
+bin/*
+.bundle/*
+
+# test kitchen
+.kitchen/
+kitchen.local.yml
+
+# Chef
+Berksfile.lock
+.zero-knife.rb
+Policyfile.lock.json

site-cookbooks/kosmos_encfs/CHANGELOG.md

@@ -0,0 +1,7 @@
+# kosmos_encfs CHANGELOG
+
+This file is used to list changes made in each version of the kosmos_encfs cookbook.
+
+# 0.1.0
+
+Initial release.

site-cookbooks/kosmos_encfs/LICENSE

@@ -0,0 +1,20 @@
+Copyright (c) 2020 Kosmos Developers
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

site-cookbooks/kosmos_encfs/README.md

@@ -0,0 +1,3 @@
+# kosmos_encfs
+
+Install encfs and set up encryption for a data directory

site-cookbooks/kosmos_encfs/chefignore

@@ -0,0 +1,110 @@
+# Put files/directories that should be ignored in this file when uploading
+# to a Chef Infra Server or Supermarket.
+# Lines that start with '# ' are comments.
+
+# OS generated files #
+######################
+.DS_Store
+ehthumbs.db
+Icon?
+nohup.out
+Thumbs.db
+
+# SASS #
+########
+.sass-cache
+
+# EDITORS #
+###########
+.#*
+.project
+.settings
+*_flymake
+*_flymake.*
+*.bak
+*.sw[a-z]
+*.tmproj
+*~
+\#*
+mkmf.log
+REVISION
+TAGS*
+tmtags
+
+## COMPILED ##
+##############
+*.class
+*.com
+*.dll
+*.exe
+*.o
+*.pyc
+*.so
+*/rdoc/
+a.out
+
+# Testing #
+###########
+.circleci/*
+.codeclimate.yml
+.foodcritic
+.kitchen*
+.rspec
+.rubocop.yml
+.travis.yml
+.watchr
+azure-pipelines.yml
+examples/*
+features/*
+Guardfile
+kitchen.yml*
+Procfile
+Rakefile
+spec/*
+spec/*
+spec/fixtures/*
+test/*
+
+# SCM #
+#######
+.git
+.gitattributes
+.gitconfig
+.github/*
+.gitignore
+.gitmodules
+.svn
+*/.bzr/*
+*/.git
+*/.hg/*
+*/.svn/*
+
+# Berkshelf #
+#############
+Berksfile
+Berksfile.lock
+cookbooks/*
+tmp
+
+# Bundler #
+###########
+vendor/*
+Gemfile
+Gemfile.lock
+
+# Policyfile #
+##############
+Policyfile.rb
+Policyfile.lock.json
+
+# Cookbooks #
+#############
+CHANGELOG*
+CONTRIBUTING*
+TESTING*
+CODE_OF_CONDUCT*
+
+# Vagrant #
+###########
+.vagrant
+Vagrantfile

site-cookbooks/kosmos_encfs/files/encfs.service

@@ -0,0 +1,11 @@
+[Unit]
+Description=EncFS for data dir
+Before=postgresql@12-main.service
+BindsTo=postgresql@12-main.service
+[Service]
+Type=oneshot
+RemainAfterExit=yes
+ExecStart=/usr/local/bin/mount_encfs
+ExecStop=/bin/umount /mnt/data
+[Install]
+WantedBy=multi-user.target

site-cookbooks/kosmos_encfs/metadata.rb

@@ -0,0 +1,20 @@
+name 'kosmos_encfs'
+maintainer 'The Authors'
+maintainer_email 'you@example.com'
+license 'All Rights Reserved'
+description 'Installs/Configures kosmos_encfs'
+long_description 'Installs/Configures kosmos_encfs'
+version '0.1.0'
+chef_version '>= 14.0'
+
+# The `issues_url` points to the location where issues for this cookbook are
+# tracked.  A `View Issues` link will be displayed on this cookbook's page when
+# uploaded to a Supermarket.
+#
+# issues_url 'https://github.com/<insert_org_here>/kosmos_encfs/issues'
+
+# The `source_url` points to the development repository for this cookbook.  A
+# `View Source` link will be displayed on this cookbook's page when uploaded to
+# a Supermarket.
+#
+# source_url 'https://github.com/<insert_org_here>/kosmos_encfs'

site-cookbooks/kosmos_encfs/recipes/default.rb

@@ -0,0 +1,70 @@
+#
+# Cookbook:: kosmos_encfs
+# Recipe:: default
+#
+# The MIT License (MIT)
+#
+# Copyright:: 2020, Kosmos Developers
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+# THE SOFTWARE.
+#
+
+encfs_data_bag_item = data_bag_item("credentials", "encfs")
+encfs_password = encfs_data_bag_item["password"]
+
+package "encfs"
+
+encrypted_directory = "/usr/local/lib/encrypted_data"
+mount_directory = "/mnt/data"
+
+template "/usr/local/bin/mount_encfs" do
+  source "mount_encfs.erb"
+  mode "0700"
+  variables encrypted_directory: encrypted_directory,
+            mount_directory: mount_directory
+end
+
+execute "systemctl daemon-reload" do
+  command "systemctl daemon-reload"
+  action :nothing
+end
+
+directory mount_directory do
+  action :create
+  mode "0775"
+end
+
+execute "create encrypted file system" do
+  command <<-EOF
+echo "y\\\n
+y\\\n
+p\\\n
+#{encfs_password}\\\n
+#{encfs_password}\\\n
+" | encfs #{encrypted_directory} #{mount_directory} --public --stdinpass
+  EOF
+  sensitive true
+  not_if { ::File.exist?(encrypted_directory) }
+end
+
+# The service will automatically 
+cookbook_file "/lib/systemd/system/encfs.service" do
+  source "encfs.service"
+  notifies :run, "execute[systemctl daemon-reload]", :delayed
+end

site-cookbooks/kosmos_encfs/templates/mount_encfs.erb

@@ -0,0 +1,3 @@
+#!/bin/sh
+
+systemd-ask-password --echo "encfs password:" | encfs <%= @encrypted_directory %> <%= @mount_directory %> --public -S