From eecdfefa26d899611722ecdb01ee43bbb2643fce Mon Sep 17 00:00:00 2001
From: Claudio Maradonna <penguyman@stronzi.org>
Date: Tue, 22 Nov 2022 15:04:17 +0100
Subject: [PATCH] add architecture_mapping; add harden systemd for basic
 hardening role; add ipfs dedicated role

---
 group_vars/all.yml                            |  2 +
 handbook.yml                                  |  8 +-
 .../hardening-basic/tasks/harden_systemd.yml  |  2 +-
 roles/ipfs/.travis.yml                        | 29 +++++++
 roles/ipfs/README.md                          | 38 +++++++++
 roles/ipfs/defaults/main.yml                  |  9 +++
 roles/ipfs/handlers/main.yml                  |  2 +
 roles/ipfs/meta/main.yml                      | 52 +++++++++++++
 roles/ipfs/tasks/install_systemd_service.yml  | 16 ++++
 roles/ipfs/tasks/main.yml                     | 77 +++++++++++++++++++
 roles/ipfs/templates/ipfs/.ipfs/api           |  0
 .../systemd/lib/systemd/system/ipfs.service   | 57 ++++++++++++++
 roles/ipfs/tests/inventory                    |  2 +
 roles/ipfs/tests/test.yml                     |  5 ++
 roles/ipfs/vars/main.yml                      |  2 +
 roles/iptables-ipfs/README.md                 |  2 +-
 roles/iptables-ipfs/defaults/main.yml         |  2 -
 roles/iptables-ipfs/tasks/main.yml            |  2 +-
 18 files changed, 298 insertions(+), 9 deletions(-)
 create mode 100644 roles/ipfs/.travis.yml
 create mode 100644 roles/ipfs/README.md
 create mode 100644 roles/ipfs/defaults/main.yml
 create mode 100644 roles/ipfs/handlers/main.yml
 create mode 100644 roles/ipfs/meta/main.yml
 create mode 100644 roles/ipfs/tasks/install_systemd_service.yml
 create mode 100644 roles/ipfs/tasks/main.yml
 create mode 100644 roles/ipfs/templates/ipfs/.ipfs/api
 create mode 100644 roles/ipfs/templates/systemd/lib/systemd/system/ipfs.service
 create mode 100644 roles/ipfs/tests/inventory
 create mode 100644 roles/ipfs/tests/test.yml
 create mode 100644 roles/ipfs/vars/main.yml

diff --git a/group_vars/all.yml b/group_vars/all.yml
index d852cd4..67f1fb3 100644
--- a/group_vars/all.yml
+++ b/group_vars/all.yml
@@ -1,2 +1,4 @@
+architecture_mapping: { "armv6l": "armhf", "armv7l": "armhf", "aarch64": "arm64", "x86_64": "amd64", "i386": "i386" }
+
 sshd_port: 22
 ipfs_port: 4001
diff --git a/handbook.yml b/handbook.yml
index 6263672..df9fee9 100644
--- a/handbook.yml
+++ b/handbook.yml
@@ -13,14 +13,14 @@
       tags: [firewall, ips, ids]
     - role: iptables-webserver
       tags: [firewall, webserver]
-    - role: iptables-ipfs
-      tags: [firewall, ipfs]
 
     - role: fail2ban-basic
       tags: [fail2ban, ips, ids]
 
-    - yggdrasil
+    - role: ipfs
+      tags: [ipfs]
+    - role: yggdrasil
+      tags: [yggdrasil]
 
     - role: snort-community
       tags: [snort, ips, ids]
-
diff --git a/roles/hardening-basic/tasks/harden_systemd.yml b/roles/hardening-basic/tasks/harden_systemd.yml
index 4e1a684..a44247b 100644
--- a/roles/hardening-basic/tasks/harden_systemd.yml
+++ b/roles/hardening-basic/tasks/harden_systemd.yml
@@ -6,7 +6,7 @@
   with_community.general.filetree: '../templates/systemd/etc/'
   when: item.state == 'directory'
 
-- name: Create and copy hardening files
+- name: Create and copy files
   ansible.builtin.template:
     src: '{{ item.src }}'
     dest: '/etc/{{ item.path }}'
diff --git a/roles/ipfs/.travis.yml b/roles/ipfs/.travis.yml
new file mode 100644
index 0000000..36bbf62
--- /dev/null
+++ b/roles/ipfs/.travis.yml
@@ -0,0 +1,29 @@
+---
+language: python
+python: "2.7"
+
+# Use the new container infrastructure
+sudo: false
+
+# Install ansible
+addons:
+  apt:
+    packages:
+    - python-pip
+
+install:
+  # Install ansible
+  - pip install ansible
+
+  # Check ansible version
+  - ansible --version
+
+  # Create ansible.cfg with correct roles_path
+  - printf '[defaults]\nroles_path=../' >ansible.cfg
+
+script:
+  # Basic role syntax check
+  - ansible-playbook tests/test.yml -i tests/inventory --syntax-check
+
+notifications:
+  webhooks: https://galaxy.ansible.com/api/v1/notifications/
\ No newline at end of file
diff --git a/roles/ipfs/README.md b/roles/ipfs/README.md
new file mode 100644
index 0000000..225dd44
--- /dev/null
+++ b/roles/ipfs/README.md
@@ -0,0 +1,38 @@
+Role Name
+=========
+
+A brief description of the role goes here.
+
+Requirements
+------------
+
+Any pre-requisites that may not be covered by Ansible itself or the role should be mentioned here. For instance, if the role uses the EC2 module, it may be a good idea to mention in this section that the boto package is required.
+
+Role Variables
+--------------
+
+A description of the settable variables for this role should go here, including any variables that are in defaults/main.yml, vars/main.yml, and any variables that can/should be set via parameters to the role. Any variables that are read from other roles and/or the global scope (ie. hostvars, group vars, etc.) should be mentioned here as well.
+
+Dependencies
+------------
+
+A list of other roles hosted on Galaxy should go here, plus any details in regards to parameters that may need to be set for other roles, or variables that are used from other roles.
+
+Example Playbook
+----------------
+
+Including an example of how to use your role (for instance, with variables passed in as parameters) is always nice for users too:
+
+    - hosts: servers
+      roles:
+         - { role: username.rolename, x: 42 }
+
+License
+-------
+
+BSD
+
+Author Information
+------------------
+
+An optional section for the role authors to include contact information, or a website (HTML is not allowed).
diff --git a/roles/ipfs/defaults/main.yml b/roles/ipfs/defaults/main.yml
new file mode 100644
index 0000000..8aa048a
--- /dev/null
+++ b/roles/ipfs/defaults/main.yml
@@ -0,0 +1,9 @@
+---
+# defaults file for ipfs
+
+ipfs_enabled: false
+ipfs_setup: false
+ipfs_updater_version: 1.9.0
+
+ipfs_group: ipfs
+ipfs_user: ipfs
diff --git a/roles/ipfs/handlers/main.yml b/roles/ipfs/handlers/main.yml
new file mode 100644
index 0000000..50db67b
--- /dev/null
+++ b/roles/ipfs/handlers/main.yml
@@ -0,0 +1,2 @@
+---
+# handlers file for ipfs
diff --git a/roles/ipfs/meta/main.yml b/roles/ipfs/meta/main.yml
new file mode 100644
index 0000000..c572acc
--- /dev/null
+++ b/roles/ipfs/meta/main.yml
@@ -0,0 +1,52 @@
+galaxy_info:
+  author: your name
+  description: your role description
+  company: your company (optional)
+
+  # If the issue tracker for your role is not on github, uncomment the
+  # next line and provide a value
+  # issue_tracker_url: http://example.com/issue/tracker
+
+  # Choose a valid license ID from https://spdx.org - some suggested licenses:
+  # - BSD-3-Clause (default)
+  # - MIT
+  # - GPL-2.0-or-later
+  # - GPL-3.0-only
+  # - Apache-2.0
+  # - CC-BY-4.0
+  license: license (GPL-2.0-or-later, MIT, etc)
+
+  min_ansible_version: 2.1
+
+  # If this a Container Enabled role, provide the minimum Ansible Container version.
+  # min_ansible_container_version:
+
+  #
+  # Provide a list of supported platforms, and for each platform a list of versions.
+  # If you don't wish to enumerate all versions for a particular platform, use 'all'.
+  # To view available platforms and versions (or releases), visit:
+  # https://galaxy.ansible.com/api/v1/platforms/
+  #
+  # platforms:
+  # - name: Fedora
+  #   versions:
+  #   - all
+  #   - 25
+  # - name: SomePlatform
+  #   versions:
+  #   - all
+  #   - 1.0
+  #   - 7
+  #   - 99.99
+
+  galaxy_tags: []
+    # List tags for your role here, one per line. A tag is a keyword that describes
+    # and categorizes the role. Users find roles by searching for tags. Be sure to
+    # remove the '[]' above, if you add tags to this list.
+    #
+    # NOTE: A tag is limited to a single word comprised of alphanumeric characters.
+    #       Maximum 20 tags per role.
+
+dependencies: []
+  # List your role dependencies here, one per line. Be sure to remove the '[]' above,
+  # if you add dependencies to this list.
diff --git a/roles/ipfs/tasks/install_systemd_service.yml b/roles/ipfs/tasks/install_systemd_service.yml
new file mode 100644
index 0000000..7b556b4
--- /dev/null
+++ b/roles/ipfs/tasks/install_systemd_service.yml
@@ -0,0 +1,16 @@
+- name: Install systemd service for ipfs
+  become: true
+  become_user: root
+  block:
+    - name: Create and copy systemd files
+      ansible.builtin.template:
+        src: '{{ item.src }}'
+        dest: '/{{ item.path }}'
+      with_community.general.filetree: '../templates/systemd/'
+      when: item.state == 'file'
+
+    - name: Reload systemd services
+      ansible.builtin.systemd:
+        name: ipfs
+        state: started
+        daemon_reload: yes
diff --git a/roles/ipfs/tasks/main.yml b/roles/ipfs/tasks/main.yml
new file mode 100644
index 0000000..0ba7ce1
--- /dev/null
+++ b/roles/ipfs/tasks/main.yml
@@ -0,0 +1,77 @@
+---
+# tasks file for ipfs
+
+- name: Install IPFS if enabled
+  when:
+    - 'ipfs_enabled is true'
+  block:
+    - name: Setup ipfs-update
+      when: 'ipfs_setup is true'
+      block:
+        - name: Create ipfs group
+          group:
+            name: "{{ ipfs_group }}"
+            state: present
+
+        - name: Create ipfs user
+          user:
+            name: "{{ ipfs_user }}"
+            state: present
+            shell: /sbin/nologin
+            group: "{{ ipfs_group }}"
+
+        - name: Create working dir
+          ansible.builtin.file:
+            path: '/mnt/ipfs'
+            state: directory
+            owner: '{{ ipfs_user }}'
+            group: '{{ ipfs_group }}'
+
+        - name: Download ipfs-update for IPFS version control
+          ansible.builtin.unarchive:
+            src: 'https://dist.ipfs.tech/ipfs-update/v{{ ipfs_updater_version }}/ipfs-update_v{{ ipfs_updater_version }}_linux-{{ architecture_mapping[ansible_architecture] }}.tar.gz'
+            dest: /tmp
+            remote_src: yes
+            owner: root
+            group: root
+
+        - name: Install ipfs-update
+          ansible.builtin.copy:
+            src: /tmp/ipfs-update/ipfs-update
+            dest: /usr/local/bin/ipfs-update
+            owner: ipfs
+            group: ipfs
+            mode: '1750'
+            remote_src: yes
+
+    - name: Install ipfs version specified
+      when: 'ipfs_version is defined'
+      become: true
+      become_user: '{{ ipfs_user }}'
+      block:
+        - name: Create directory tree if not exists
+          ansible.builtin.file:
+            path: '~/{{ item.path }}'
+            state: directory
+            mode: '{{ item.mode }}'
+          with_community.general.filetree: '../templates/ipfs/'
+          when: item.state == 'directory'
+
+        - name: Create and copy hardening files
+          ansible.builtin.template:
+            src: '{{ item.src }}'
+            dest: '~/{{ item.path }}'
+          with_community.general.filetree: '../templates/ipfs/'
+          when: item.state == 'file'
+
+        - name: Update ipfs-update version
+          ansible.builtin.shell: PATH=$PATH:$HOME/.local/bin ipfs-update versions
+
+        - name: Install version
+          ansible.builtin.shell: PATH=$PATH:$HOME/.local/bin ipfs-update install {{ ipfs_version }}
+
+        - include_tasks: "install_{{ ansible_service_mgr }}_service.yml"
+
+    - name: Setup firewall
+      ansible.builtin.include_role:
+        name: iptables-ipfs
diff --git a/roles/ipfs/templates/ipfs/.ipfs/api b/roles/ipfs/templates/ipfs/.ipfs/api
new file mode 100644
index 0000000..e69de29
diff --git a/roles/ipfs/templates/systemd/lib/systemd/system/ipfs.service b/roles/ipfs/templates/systemd/lib/systemd/system/ipfs.service
new file mode 100644
index 0000000..e256157
--- /dev/null
+++ b/roles/ipfs/templates/systemd/lib/systemd/system/ipfs.service
@@ -0,0 +1,57 @@
+[Unit]
+Description=IPFS Daemon
+Documentation=https://docs.ipfs.io/
+After=network.target
+
+[Service]
+# hardening
+ReadWritePaths=/home/ipfs /mnt/ipfs
+NoNewPrivileges=true
+ProtectSystem=strict
+ProtectKernelTunables=true
+ProtectKernelModules=true
+ProtectKernelLogs=true
+PrivateDevices=true
+DevicePolicy=closed
+ProtectControlGroups=true
+RestrictAddressFamilies=AF_UNIX AF_INET AF_INET6 AF_NETLINK
+ProtectHostname=true
+PrivateTmp=true
+ProtectClock=true
+LockPersonality=true
+RestrictNamespaces=true
+RestrictRealtime=true
+MemoryDenyWriteExecute=true
+SystemCallArchitectures=native
+SystemCallFilter=@system-service
+SystemCallFilter=~@privileged
+#ProtectHome=true
+RemoveIPC=true
+RestrictSUIDSGID=true
+CapabilityBoundingSet=CAP_NET_BIND_SERVICE
+
+LimitNOFILE=8192
+#LimitNice=10
+MemoryAccounting=true
+#MemoryHigh=768M
+#MemoryMax=1024M
+MemorySwapMax=0
+CPUAccounting=true
+CPUQuota=40%
+TimeoutStartSec=infinity
+
+Type=notify
+Environment="IPFS_PATH=/mnt/ipfs"
+Environment=IPFS_LOGGING="error"
+Environment=IPFS_FD_MAX=8192
+ExecStart=/home/ipfs/.local/bin/ipfs daemon --init --enable-gc --migrate
+User=ipfs
+Group=ipfs
+StateDirectory=ipfs
+Restart=always
+RestartSec=60
+KillMode=process
+KillSignal=SIGINT
+
+[Install]
+WantedBy=multi-user.target
diff --git a/roles/ipfs/tests/inventory b/roles/ipfs/tests/inventory
new file mode 100644
index 0000000..878877b
--- /dev/null
+++ b/roles/ipfs/tests/inventory
@@ -0,0 +1,2 @@
+localhost
+
diff --git a/roles/ipfs/tests/test.yml b/roles/ipfs/tests/test.yml
new file mode 100644
index 0000000..6c352bd
--- /dev/null
+++ b/roles/ipfs/tests/test.yml
@@ -0,0 +1,5 @@
+---
+- hosts: localhost
+  remote_user: root
+  roles:
+    - ipfs
diff --git a/roles/ipfs/vars/main.yml b/roles/ipfs/vars/main.yml
new file mode 100644
index 0000000..32a3988
--- /dev/null
+++ b/roles/ipfs/vars/main.yml
@@ -0,0 +1,2 @@
+---
+# vars file for ipfs
diff --git a/roles/iptables-ipfs/README.md b/roles/iptables-ipfs/README.md
index 9615f30..27710bd 100644
--- a/roles/iptables-ipfs/README.md
+++ b/roles/iptables-ipfs/README.md
@@ -11,7 +11,7 @@ Requirements
 Role Variables
 --------------
 
-- **iptables_ipfs_enabled** (boolean): Enable or disable IPFS rules
+- **ipfs_enabled** (boolean): Enable or disable IPFS rules
 
 Dependencies
 ------------
diff --git a/roles/iptables-ipfs/defaults/main.yml b/roles/iptables-ipfs/defaults/main.yml
index ad7c494..9533535 100644
--- a/roles/iptables-ipfs/defaults/main.yml
+++ b/roles/iptables-ipfs/defaults/main.yml
@@ -1,4 +1,2 @@
 ---
 # defaults file for iptables-ipfs
-
-iptables_ipfs_enabled: false
diff --git a/roles/iptables-ipfs/tasks/main.yml b/roles/iptables-ipfs/tasks/main.yml
index 29898a5..de56cc8 100644
--- a/roles/iptables-ipfs/tasks/main.yml
+++ b/roles/iptables-ipfs/tasks/main.yml
@@ -4,7 +4,7 @@
 - name: setup iptables for IPFS
   when:
     - "is_docker is not true"
-    - "iptables_ipfs_enabled is true"
+    - "ipfs_enabled is true"
   block:
     - name: Allow new, established packets on TCP/UDP port 4001 (IPFS)
       ansible.builtin.iptables: