From ed2453742f7fb257d2ebe31d5b1efe148a329ef0 Mon Sep 17 00:00:00 2001
From: josep-tecnativa <josep.guardiola@tecnativa.com>
Date: Fri, 22 Mar 2024 14:59:36 +0100
Subject: [PATCH] [ADD] Add option to use traefik 3. With traefik 3 selected,
 domains rule has to be modified, in order to not use syntax like this:
 PathPrefix(`/url1/`, `/url2/`), and use instead PathPrefix(`/url1/`) ||
 PathPrefix(`/url2/`)

---
 _traefik3_labels.yml.jinja | 97 ++++++++++++++++++++++++++++++++++++++
 copier.yml                 | 11 +++++
 prod.yaml.jinja            |  4 +-
 test.yaml.jinja            |  1 +
 4 files changed, 112 insertions(+), 1 deletion(-)
 create mode 100644 _traefik3_labels.yml.jinja

diff --git a/_traefik3_labels.yml.jinja b/_traefik3_labels.yml.jinja
new file mode 100644
index 00000000..2b27e053
--- /dev/null
+++ b/_traefik3_labels.yml.jinja
@@ -0,0 +1,97 @@
+{%- import "_macros.jinja" as macros -%}
+{# Echo all domains of a group, in a Traefik rule #}
+{%- macro domains_rule(hosts, path_prefixes=(), paths=()) -%}
+  Host(`{{ hosts | join("` || Host(`") }}`)
+  {%- if path_prefixes or paths -%}
+    && (
+      {%- if path_prefixes -%}
+        {{ path_prefix_rule(path_prefixes) }}
+        {%- if paths %} || {% endif %}
+      {%- endif %}
+      {%- if paths -%}
+        {{ path_rule(paths) }}
+      {%- endif %}
+    )
+  {%- endif %}
+{%- endmacro %}
+
+{# Echo all path prefixes in a Traefik rule #}
+{%- macro path_prefix_rule(path_prefixes) -%}
+  {%- for path in path_prefixes -%}
+    {%- if path.endswith("/") -%}
+      PathPrefix(`{{ path }}`)
+    {%- else -%}
+      PathPrefix(`{{ path }}`) || Path(`{{ path }}`)
+    {%- endif -%}
+    {%- if not loop.last %} || {% endif %}
+  {%- endfor %}
+{%- endmacro %}
+
+{# Echo all paths in a Traefik rule #}
+{%- macro path_rule(paths) -%}
+  {%- for path in paths -%}
+    Path(`{{ path }}`)
+    {%- if not loop.last %} || {% endif %}
+  {%- endfor %}
+{%- endmacro %}
+
+{%- macro odoo(domain_groups_list, paths_without_crawlers, odoo_version, traefik_version) %}
+      traefik.domain: {{ macros.first_main_domain(domain_groups_list)|tojson }}
+      {%- call(domain_group) macros.domains_loop_grouped(domain_groups_list) %}
+
+      {#- Route redirections #}
+      {%- if domain_group.redirect_to %}
+      traefik.alt-{{ domain_group.loop.index0 }}.frontend.redirect.regex: ^(.*)://([^/]+)/(.*)$$
+      traefik.alt-{{ domain_group.loop.index0 }}.frontend.redirect.replacement: $$1://{{ domain_group.redirect_to }}/$$3
+      {{-
+        router(
+          prefix="alt",
+          index0=domain_group.loop.index0,
+          rule=domains_rule(domain_group.hosts, domain_group.path_prefixes),
+          entrypoints=domain_group.entrypoints,
+        )
+      }}
+      {%- else %}
+
+      {#- Forbidden crawler routers #}
+      {%- if traefik_version < 3%}
+      {%- if paths_without_crawlers and not domain_group.path_prefixes %}
+      traefik.forbiddenCrawlers-{{ domain_group.loop.index0 }}.frontend.headers.customResponseHeaders:
+        "X-Robots-Tag:noindex, nofollow"
+      {{-
+        router(
+          prefix="forbiddenCrawlers",
+          index0=domain_group.loop.index0,
+          rule=domains_rule(domain_group.hosts, paths_without_crawlers),
+          entrypoints=domain_group.entrypoints,
+        )
+      }}
+      {%- endif %}
+      {%- endif %}
+
+      {#- Normal routers #}
+      {%- if paths_without_crawlers != ["/"] or domain_group.path_prefixes %}
+      {{-
+        router(
+          prefix="main",
+          index0=domain_group.loop.index0,
+          rule=domains_rule(domain_group.hosts, domain_group.path_prefixes),
+          entrypoints=domain_group.entrypoints,
+        )
+      }}
+      {%- endif %}
+      {%- if not domain_group.path_prefixes %}
+      {%- set longpolling_route = "/longpolling/" if odoo_version < 16 else "/websocket" -%}
+      {{-
+        router(
+          prefix="longpolling",
+          index0=domain_group.loop.index0,
+          rule=domains_rule(domain_group.hosts, [longpolling_route]),
+          entrypoints=domain_group.entrypoints,
+          port=8072,
+        )
+      }}
+      {%- endif %}
+      {%- endif %}
+      {%- endcall %}
+{%- endmacro %}
diff --git a/copier.yml b/copier.yml
index 3bfd7b6f..42491ce1 100644
--- a/copier.yml
+++ b/copier.yml
@@ -125,6 +125,17 @@ odoo_proxy:
 
     Which proxy will you use to deploy odoo?
 
+traefik_version:
+  default: 3
+  type: int
+  when: &odoo_proxy_specific "{{ odoo_proxy == 'traefik' }}"
+  help: >-
+    Indicate traefik version
+  choices:
+    - 1
+    - 2
+    - 3
+
 odoo_initial_lang:
   default: en_US
   type: str
diff --git a/prod.yaml.jinja b/prod.yaml.jinja
index d8147be5..86c30f81 100644
--- a/prod.yaml.jinja
+++ b/prod.yaml.jinja
@@ -1,6 +1,8 @@
 {%- import "_macros.jinja" as macros -%}
 {%- import "_traefik1_labels.yml.jinja" as traefik1_labels -%}
 {%- import "_traefik2_labels.yml.jinja" as traefik2_labels -%}
+{%- import "_traefik3_labels.yml.jinja" as traefik3_labels -%}
+
 {%- set _key = traefik2_labels.key(project_name, odoo_version, "prod") -%}
 version: "2.4"
 
@@ -37,7 +39,7 @@ services:
       doodba.domain.main: {{ macros.first_main_domain(domains_prod)|tojson }}
       {%- if odoo_proxy == "traefik" and domains_prod %}
       traefik.enable: "true"
-      {{- traefik1_labels.odoo(domains_prod, paths_without_crawlers, odoo_version) }}
+      {{- (traefik3_labels.odoo(domains_prod, paths_without_crawlers, odoo_version) if traefik_version == 3 else traefik1_labels.odoo(domains_prod, paths_without_crawlers, odoo_version)) }}
       {{- traefik2_labels.common_middlewares(_key, cidr_whitelist) }}
       {{- traefik2_labels.odoo(
         domains_prod,
diff --git a/test.yaml.jinja b/test.yaml.jinja
index 3c746f59..f45a063c 100644
--- a/test.yaml.jinja
+++ b/test.yaml.jinja
@@ -1,6 +1,7 @@
 {%- import "_macros.jinja" as macros -%}
 {%- import "_traefik1_labels.yml.jinja" as traefik1_labels -%}
 {%- import "_traefik2_labels.yml.jinja" as traefik2_labels -%}
+{%- import "_traefik3_labels.yml.jinja" as traefik3_labels -%}
 {%- set _key = traefik2_labels.key(project_name, odoo_version, "test") -%}
 version: "2.4"