Remove support for packaged installations on centos7 and SLES12

https://community.openproject.org/work_packages/51533

.pkgr.yml

@@ -23,7 +23,7 @@ targets:
     <<: *debian
   ubuntu-22.04:
     <<: *debian
-  centos-7: &centos7
+  centos-8: &centos8
     env:
       - BUNDLE_BUILD__PG="--with-pg-config=/usr/pgsql-13/bin/pg_config"
       - NODE_ENV=production
@@ -33,21 +33,11 @@ targets:
       - ImageMagick
       - unzip
       - poppler-utils
-  centos-8:
-    <<: *centos7
-    env:
-      - NODE_ENV=production
-      - NPM_CONFIG_PRODUCTION=false
   centos-9:
-    <<: *centos7
+    <<: *centos8
     env:
       - NODE_ENV=production
       - NPM_CONFIG_PRODUCTION=false
-  sles-12:
-    build_dependencies:
-      - sqlite3-devel
-    dependencies:
-      - ImageMagick
   sles-15:
     build_dependencies:
       - sqlite3-devel

docs/installation-and-operations/installation/packaged/README.md

@@ -35,9 +35,7 @@ The package is available for the following Linux distributions:
 | [Debian 10 Buster](#debian-10)              |
 | [CentOS/RHEL 9.x](#centos-9--rhel-9)        |
 | [CentOS/RHEL 8.x](#centos-8--rhel-8)        |
-| [CentOS/RHEL 7.x](#centos-7--rhel-7)        |
 | [Suse Linux Enterprise Server 15](#sles-15) |
-| [Suse Linux Enterprise Server 12](#sles-12) |
 
 Please ensure that you are running on a 64bit system before proceeding with the installation. You can check by running the `uname -i` command on the target server and verifying that it outputs `x86_64`:
 
@@ -265,25 +263,6 @@ Then finish the installation by reading the [*Initial configuration*](#initial-c
 > **Note:** On this distribution full-text extraction for attachments [*is not supported*](#full-text-extraction-not-supported) by default.
 >
 
-### CentOS 7 / RHEL 7
-
-Add the OpenProject package source:
-
-```shell
-sudo wget -O /etc/yum.repos.d/openproject.repo \
-  https://dl.packager.io/srv/opf/openproject/stable/13/installer/el/7.repo
-```
-
-Download the OpenProject package:
-
-```shell
-sudo yum install openproject
-```
-
-Then finish the installation by reading the [*Initial configuration*](#initial-configuration) section.
-
-> **Note:** On this distribution full-text extraction for attachments [*is not supported*](#full-text-extraction-not-supported) by default.
-
 **Workaround for outdated PostgreSQL library package**
 
 Depending on your version and installation variant, you might receive errors like `symbol lookup error: /opt/openproject/vendor/bundle/ruby/3.1.0/gems/pg-1.4.3/lib/pg_ext.so: undefined symbol: PQconninfo`.
@@ -326,30 +305,6 @@ sudo zypper install openproject
 
 Then finish the installation by reading the [*Initial configuration*](#initial-configuration) section.
 
-### SLES 12
-
-Add the OpenProject package source:
-
-```shell
-wget -O /etc/zypp/repos.d/openproject.repo \
-  https://dl.packager.io/srv/opf/openproject/stable/13/installer/sles/12.repo
-```
-
-If you already had an old package source that is being updated you must refresh
-your source next. It can't hurt to do this in any case, though.
-
-```shell
-sudo zypper refresh openproject
-```
-
-Next, download the OpenProject package:
-
-```shell
-sudo zypper install openproject
-```
-
-Then finish the installation by reading the [*Initial configuration*](#initial-configuration) section.
-
 # Full-text extraction not supported
 
 For some distributions we do not provide the required dependencies for full-text extraction of attachments. If you need this feature, please install the required dependencies (`catdoc unrtf poppler-utils tesseract-ocr`) manually. For more information, [please see the plaintext gem](https://github.com/planio-gmbh/plaintext). Once installed, check `Administration > Information` to see if OpenProject is able to pick up these dependencies.

docs/installation-and-operations/operation/upgrading/README.md

@@ -212,7 +212,10 @@ These following points are some known issues around the update to 8.0. It does n
 
 ### Upgrades in NPM may result in package inconsistencies
 
-As has been reported from the community, [there appear to be issues with NPM leftover packages](https://community.openproject.com/wp/28571) upgrading to OpenProject 8.0.0. This is due to the packages applying a delta between your installed version and the to-be-installed 8.0. package. In some cases such as SLES12 and Centos 7, the `frontend/node_modules` folder is not fully correctly replaced. This appears to hint at an issue with yum, the package manager behind both.
+As has been reported from the
+community, [there appear to be issues with NPM leftover packages](https://community.openproject.com/wp/28571) upgrading
+to OpenProject 8.0.0. This is due to the packages applying a delta between your installed version and the
+to-be-installed 8.0. package.
 
 To ensure the package's node_modules folder matches your local version, we recommend you simply remove `/opt/openproject/frontend/node_modules` entirely **before** installing the package