1 files changed, 145 insertions, 0 deletions
diff --git a/roles/x509/acmetool/base/tasks/selfsigned.yml b/roles/x509/acmetool/base/tasks/selfsigned.yml
new file mode 100644
index 00000000..449fbdb9
--- /dev/null
+++ b/roles/x509/acmetool/base/tasks/selfsigned.yml
@@ -0,0 +1,145 @@
+---
+- name: get id of existing selfsigned interim certificate
+  ansible.builtin.shell: cat /var/lib/acme/.selfsigned-interim-cert || true
+  changed_when: false
+  check_mode: false
+  register: existing_selfsigned_interim_cert_id
+
+- name: set existing_selfsigned_interim_cert_id variable
+  ansible.builtin.set_fact:
+    existing_selfsigned_interim_cert_id: "{{ existing_selfsigned_interim_cert_id.stdout }}"
+
+- name: check if selfsigned interim certificate does exist
+  ansible.builtin.stat:
+    path: "/var/lib/acme/certs/{{ existing_selfsigned_interim_cert_id }}"
+  register: existing_selfsigned_interim_cert_stat
+
+- name: create selfsigned interim certificate
+  when: not existing_selfsigned_interim_cert_id or not existing_selfsigned_interim_cert_stat.stat.exists
+  block:
+  - name: create temporary directory
+    ansible.builtin.tempfile:
+      path: /var/lib/acme/tmp
+      prefix: selfsigned-interim-cert-
+      state: directory
+    register: tmpdir
+
+  - name: set tmpdir variable
+    ansible.builtin.set_fact:
+      tmpdir: "{{ tmpdir.path }}"
+
+  - name: generate private key for selfsigned interim certificate
+    ansible.builtin.openssl_privatekey:
+      path: "{{ tmpdir }}/privkey"
+      mode: 0600
+
+  - name: generate csr for selfsigned interim certificate
+    community.crypto.openssl_csr_pipe:
+      privatekey_path: "{{ tmpdir }}/privkey"
+      common_name: "{{ ansible_fqdn }}"
+    register: selfsigned_interim_cert_req
+
+
+  ### this is needed because strftime filter in ansible is exceptionally stupid
+  ### see: https://github.com/ansible/ansible/issues/39835
+  - name: get remote date-time 10s ago
+    ansible.builtin.command: date -d '10 seconds ago' -u '+%Y%m%d%H%M%SZ'
+    register: remote_datetime_10sago
+
+  - name: get remote date-time now
+    ansible.builtin.command: date -u '+%Y%m%d%H%M%SZ'
+    register: remote_datetime_now
+
+  - name: generate selfsigned interim certificate
+    community.crypto.x509_certificate_pipe:
+      privatekey_path: "{{ tmpdir }}/privkey"
+      csr_content: "{{ selfsigned_interim_cert_req.csr }}"
+      provider: selfsigned
+      ## make sure the certificate is not valid anymore to force acmetool to create a new cert
+      selfsigned_not_before: "{{ remote_datetime_10sago.stdout }}"
+      selfsigned_not_after: "{{ remote_datetime_now.stdout }}"
+    register: selfsigned_interim_cert
+
+  - name: install selfsigned interim certificate and fullchain
+    loop:
+    - cert
+    - fullchain
+    ansible.builtin.copy:
+      content: "{{ selfsigned_interim_cert.certificate }}"
+      dest: "{{ tmpdir }}/{{ item }}"
+
+  - name: create additional empty files
+    loop:
+    - chain
+    - selfsigned
+    ansible.builtin.copy:
+      content: ""
+      dest: "{{ tmpdir }}/{{ item }}"
+
+  ### TODO: remove this once acmetool respects it's own storage layout
+  ###       see: https://github.com/hlandau/acme/blob/master/_doc/SCHEMA.md#temporary-use-of-self-signed-certificates
+  - name: generate fake url file
+    ansible.builtin.copy:
+      content: "https://acme.example.com/acme/cert/self-signed\n"
+      dest: "{{ tmpdir }}/url"
+
+  - name: get key id
+    ansible.builtin.shell: "openssl x509 -in '{{ tmpdir }}/cert' -noout -pubkey | openssl enc -base64 -d | openssl sha256 -binary | base32 | tr -d '=' | tr '[:upper:]' '[:lower:]'"
+    register: selfsigned_interim_key_id
+
+  - name: set selfsigned_interim_key_id variable
+    ansible.builtin.set_fact:
+      selfsigned_interim_key_id: "{{ selfsigned_interim_key_id.stdout }}"
+
+  - name: create directory for private key of selfsigned interim certificate
+    ansible.builtin.file:
+      path: "/var/lib/acme/keys/{{ selfsigned_interim_key_id }}"
+      state: directory
+      mode: 0700
+
+  - name: move private key to its directory
+    ansible.builtin.command: "mv '{{ tmpdir }}/privkey' '/var/lib/acme/keys/{{ selfsigned_interim_key_id }}/privkey'"
+
+  - name: create symlink to privkey
+    ansible.builtin.file:
+      src: "../../keys/{{ selfsigned_interim_key_id }}/privkey"
+      dest: "{{ tmpdir }}/privkey"
+      state: link
+
+  # - name: get certificate id
+  #   ansible.builtin.shell: "openssl x509 -in '{{ tmpdir }}/cert' -outform der | openssl sha256 -binary | base32 | tr -d '=' | tr '[:upper:]' '[:lower:]'"
+  #   register: selfsigned_interim_cert_id
+
+  # - name: set selfsigned_interim_cert_id variable
+  #   ansible.builtin.set_fact:
+  #     selfsigned_interim_cert_id: "selfsigned-{{ selfsigned_interim_cert_id.stdout }}"
+
+  ### TODO: replace with the above once acmetool respects it's own storage layout
+  ###       see: https://github.com/hlandau/acme/blob/master/_doc/SCHEMA.md#temporary-use-of-self-signed-certificates
+  - name: get certificate id
+    ansible.builtin.shell: "cat '{{ tmpdir }}/url' | tr -d '\n' | openssl sha256 -binary | base32 | tr -d '=' | tr '[:upper:]' '[:lower:]'"
+    register: selfsigned_interim_cert_id
+
+  - name: set selfsigned_interim_cert_id variable
+    ansible.builtin.set_fact:
+      selfsigned_interim_cert_id: "{{ selfsigned_interim_cert_id.stdout }}"
+
+  - name: set permissions for selfsigned interim certificate directory
+    ansible.builtin.file:
+      path: "{{ tmpdir }}"
+      mode: 0755
+      state: directory
+
+  - name: move selfsigned interim certificate directory into place
+    ansible.builtin.command: "mv '{{ tmpdir }}' '/var/lib/acme/certs/{{ selfsigned_interim_cert_id }}'"
+
+  - name: write cert-id of selfsigned interim certificate to state directory
+    ansible.builtin.copy:
+      content: "{{ selfsigned_interim_cert_id }}"
+      dest: /var/lib/acme/.selfsigned-interim-cert
+
+  rescue:
+  - name: remove temporary directory for selfsigned interim certificate
+    ansible.builtin.file:
+      path: "{{ tmpdir }}"
+      state: absent