Configure Bacula File Daemon / Storage Daemon / Director.

Using client-side data signing/encryption and wrapping inter-host
communication into stunnel.

5 files changed, 242 insertions, 0 deletions

diff --git a/roles/bacula-sd/files/lib/systemd/system/bacula-sd.service b/roles/bacula-sd/files/lib/systemd/system/bacula-sd.service
new file mode 100644
index 0000000..4c3f81d
--- /dev/null
+++ b/roles/bacula-sd/files/lib/systemd/system/bacula-sd.service
@@ -0,0 +1,14 @@
+[Unit]
+Description=Bacula Storage Daemon service
+After=network.target
+
+[Service]
+Type=forking
+PIDFile=/var/run/bacula/bacula-sd.9113.pid
+StandardOutput=syslog
+User=bacula
+Group=tape
+ExecStart=/usr/sbin/bacula-sd -c /etc/bacula/bacula-sd.conf
+
+[Install]
+WantedBy=multi-user.target
diff --git a/roles/bacula-sd/handlers/main.yml b/roles/bacula-sd/handlers/main.yml
new file mode 100644
index 0000000..ce391d2
--- /dev/null
+++ b/roles/bacula-sd/handlers/main.yml
@@ -0,0 +1,9 @@
+---
+- name: systemctl daemon-reload
+  command: /bin/systemctl daemon-reload
+
+- name: Restart stunnel
+  service: name=stunnel4 pattern=/usr/bin/stunnel4 state=restarted
+
+- name: Restart bacula-sd
+  service: name=bacula-sd state=restarted
diff --git a/roles/bacula-sd/tasks/main.yml b/roles/bacula-sd/tasks/main.yml
new file mode 100644
index 0000000..7a6c8c3
--- /dev/null
+++ b/roles/bacula-sd/tasks/main.yml
@@ -0,0 +1,110 @@
+- name: Install stunnel
+  apt: pkg=stunnel4
+
+- name: Auto-enable stunnel
+  lineinfile: dest=/etc/default/stunnel4
+              regexp='^(\s*#)?\s*ENABLED='
+              line='ENABLED=1'
+              owner=root group=root
+              mode=0644
+
+- name: Create /etc/stunnel/certs
+  file: path=/etc/stunnel/certs
+        state=directory
+        owner=root group=root
+        mode=0755
+
+- name: Generate a private key and a X.509 certificate for Bacula SD
+  command: genkeypair.sh x509
+                         --pubkey=/etc/stunnel/certs/{{ inventory_hostname_short }}-sd.pem
+                         --privkey=/etc/stunnel/certs/{{ inventory_hostname_short }}-sd.key
+                         --ou=BaculaSD --cn={{ inventory_hostname }} --dns={{ inventory_hostname }}
+                         -t rsa -b 4096 -h sha512
+  register: r1
+  changed_when: r1.rc == 0
+  failed_when: r1.rc > 1
+  notify:
+    - Restart stunnel
+  tags:
+    - genkey
+
+- name: Fetch Bacula SD X.509 certificate
+  # Ensure we don't fetch private data
+  sudo: False
+  fetch: src=/etc/stunnel/certs/{{ inventory_hostname_short }}-sd.pem
+         dest=certs/bacula/
+         fail_on_missing=yes
+         flat=yes
+  tags:
+    - genkey
+
+- name: Copy Bacula Dir/FD X.509 certificates
+  assemble: src=certs/bacula regexp="-(dir|fd)\.pem$" remote_src=no
+            dest=/etc/stunnel/certs/bacula-dir+fds.pem
+            owner=root group=root
+            mode=0644
+  register: r2
+  notify:
+    - Restart stunnel
+
+- name: Configure stunnel
+  template: src=etc/stunnel/bacula-sd.conf.j2
+            dest=/etc/stunnel/bacula-sd.conf
+            owner=root group=root
+            mode=0644
+  register: r3
+  notify:
+    - Restart stunnel
+
+- name: Start stunnel
+  service: name=stunnel4 pattern=/usr/bin/stunnel4 state=started
+  when: not (r1.changed or r2.changed or r3.changed)
+
+- meta: flush_handlers
+
+
+
+- name: Install bacula-sd
+  apt: pkg=bacula-sd
+
+# Create with:
+#   echo $director-dir $(pwgen -sn 64 1) | sudo tee -a /etc/bacula/passwords-sd
+- name: Ensure /etc/bacula/passwords-sd exists
+  file: path=/etc/bacula/passwords-sd
+        state=file
+        owner=bacula group=bacula
+        mode=0600
+
+- name: Configure bacula
+  template: src=etc/bacula/bacula-sd.conf.j2
+            dest=/etc/bacula/bacula-sd.conf
+            owner=root group=root
+            mode=0644
+  notify:
+    - Restart bacula-sd
+
+- name: Copy bacula-sd.service
+  copy: src=lib/systemd/system/bacula-sd.service
+        dest=/lib/systemd/system/bacula-sd.service
+        owner=root group=root
+        mode=0644
+  notify:
+    - systemctl daemon-reload
+    - Restart bacula-sd
+
+- meta: flush_handlers
+
+- name: Enable bacula-sd
+  service: name=bacula-sd enabled=yes
+
+- name: Start bacula-sd
+  service: name=bacula-sd state=started
+
+# To avoid bacula creating archives under /mnt/backup/bacula when it's
+# not a mountpoint, use `chmod 0700 /mnt/backup; chown root:root /mnt/backup`
+# before mounting the disk.
+- name: Create /mnt/backup/bacula
+  file: path=/mnt/backup/bacula
+        state=directory
+        owner=bacula group=tape
+        mode=0750
diff --git a/roles/bacula-sd/templates/etc/bacula/bacula-sd.conf.j2 b/roles/bacula-sd/templates/etc/bacula/bacula-sd.conf.j2
new file mode 100644
index 0000000..7be783b
--- /dev/null
+++ b/roles/bacula-sd/templates/etc/bacula/bacula-sd.conf.j2
@@ -0,0 +1,56 @@
+#
+# Default Bacula Storage Daemon Configuration file
+#
+#  For Bacula release 5.2.6 (21 February 2012) -- debian jessie/sid
+#
+# You may need to change the name of your tape drive
+#   on the "Archive Device" directive in the Device
+#   resource.  If you change the Name and/or the
+#   "Media Type" in the Device resource, please ensure
+#   that dird.conf has corresponding changes.
+#
+
+Storage {  # define myself
+  Name = {{ inventory_hostname_short }}-sd
+  Working Directory = /var/lib/bacula
+  Pid Directory = /var/run/bacula
+  Maximum Concurrent Jobs = 20
+  SDAddress = 127.0.0.1
+  SDPort = 9113
+}
+
+#
+# List Directors who are permitted to contact Storage daemon
+#
+{% for dir in groups['bacula-dir'] | sort %}
+Director {
+  Name = {{ hostvars[dir].inventory_hostname_short }}-dir
+  @|"sed -n '/^{{ hostvars[dir].inventory_hostname_short }}-dir\\s/ {s//Password = /p; q}' /etc/bacula/passwords-sd"
+}
+
+#
+# Send all messages to the Director,
+# mount messages also are sent to the email address
+#
+Messages {
+  Name = Standard
+  director = {{ hostvars[dir].inventory_hostname_short }}-dir = all
+}
+{% endfor %}
+
+#
+# Devices supported by this Storage daemon
+# To connect, the Director's bacula-dir.conf must have the
+#  same Name and MediaType.
+#
+
+Device {
+  Name = FileStorage
+  Media Type = File
+  Archive Device = /mnt/backup/bacula
+  LabelMedia = yes;                   # lets Bacula label unlabeled media
+  Random Access = Yes;
+  AutomaticMount = yes;               # when device opened, read it
+  RemovableMedia = no;
+  AlwaysOpen = no;
+}
diff --git a/roles/bacula-sd/templates/etc/stunnel/bacula-sd.conf.j2 b/roles/bacula-sd/templates/etc/stunnel/bacula-sd.conf.j2
new file mode 100644
index 0000000..b193826
--- /dev/null
+++ b/roles/bacula-sd/templates/etc/stunnel/bacula-sd.conf.j2
@@ -0,0 +1,53 @@
+; **************************************************************************
+; * Global options                                                         *
+; **************************************************************************
+
+; setuid()/setgid() to the specified user/group in daemon mode
+setuid = stunnel4
+setgid = stunnel4
+
+; PID is created inside the chroot jail
+pid = /var/run/stunnel4/bacula-sd.pid
+
+; Only log messages at severity warning (4) and higher
+debug = 4
+
+; **************************************************************************
+; * Service defaults may also be specified in individual service sections  *
+; **************************************************************************
+
+; Certificate/key is needed in server mode and optional in client mode
+cert = /etc/stunnel/certs/{{ inventory_hostname_short }}-sd.pem
+key  = /etc/stunnel/certs/{{ inventory_hostname_short }}-sd.key
+
+; Some performance tunings
+socket = l:TCP_NODELAY=1
+socket = r:TCP_NODELAY=1
+
+; Prevent MITM attacks
+verify = 4
+
+; Disable support for insecure protocols
+options = NO_SSLv2
+options = NO_SSLv3
+options = NO_TLSv1
+options = NO_TLSv1.1
+
+; These options provide additional security at some performance degradation
+options = SINGLE_ECDH_USE
+options = SINGLE_DH_USE
+
+; Select permitted SSL ciphers
+ciphers = EECDH+AES:EDH+AES:!MEDIUM:!LOW:!EXP:!aNULL:!eNULL:!SSLv2:!SSLv3:!TLSv1:!TLSv1.1
+
+; **************************************************************************
+; * Service definitions (remove all services for inetd mode)               *
+; **************************************************************************
+
+[{{ inventory_hostname_short }}-sd]
+client  = no
+accept  = 9103
+connect = 127.0.0.1:9113
+CAfile  = /etc/stunnel/certs/bacula-dir+fds.pem
+
+; vim:ft=dosini