apache · ocket8888 · Dec 1, 2020 · Nov 20, 2020 · Nov 20, 2020 · Nov 20, 2020
diff --git a/.github/workflows/ciab.yaml b/.github/workflows/ciab.yaml
@@ -212,18 +212,18 @@ jobs:
           path: ${{ github.workspace }}/dist/
       - name: Cache Perl modules
         env:
-          CENTOS_VERSION: 8
+          RHEL_VERSION: 8
         uses: actions/cache@v2
         with:
           path: ${{ github.workspace }}/infrastructure/cdn-in-a-box/traffic_ops/local
-          key: ${{ runner.os }}-cpan-centos-${{ env.CENTOS_VERSION }}-${{ hashFiles('cache/**.tar.gz') }}-${{ hashFiles('**/perllocal.pod') }}
+          key: ${{ runner.os }}-cpan-centos-${{ env.RHEL_VERSION }}-${{ hashFiles('cache/**.tar.gz') }}-${{ hashFiles('**/perllocal.pod') }}
           restore-keys: |
-            ${{ runner.os }}-cpan-centos-${{ env.CENTOS_VERSION }}-${{ hashFiles('cache/**.tar.gz') }}-${{ hashFiles('**/perllocal.pod') }}
-            ${{ runner.os }}-cpan-centos-${{ env.CENTOS_VERSION }}-${{ hashFiles('cache/**.tar.gz') }}-
-            ${{ runner.os }}-cpan-centos-${{ env.CENTOS_VERSION }}-
+            ${{ runner.os }}-cpan-centos-${{ env.RHEL_VERSION }}-${{ hashFiles('cache/**.tar.gz') }}-${{ hashFiles('**/perllocal.pod') }}
+            ${{ runner.os }}-cpan-centos-${{ env.RHEL_VERSION }}-${{ hashFiles('cache/**.tar.gz') }}-
+            ${{ runner.os }}-cpan-centos-${{ env.RHEL_VERSION }}-
       - name: Build CDN-in-a-Box images
         env:
-          CENTOS_VERSION: 8
+          RHEL_VERSION: 8
         uses: ./.github/actions/build-ciab
       - name: Start CDN-in-a-Box
         uses: ./.github/actions/run-ciab

diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -12,7 +12,7 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/).
 - Added locationByDeepCoverageZone to the `crs/stats/ip/{ip}` endpoint in the Traffic Router API
 - Traffic Portal: upgraded change log UI table to use more powerful/performant ag-grid component
 - Traffic Portal: change log days are now configurable in traffic_portal_properties.json (default is 7 days) and can be overridden by the user in TP
-
+- [#5319](https://github.com/apache/trafficcontrol/issues/5319) - Added support for building RPMs that target CentOS 8
 
 ### Fixed
 - [#5274](https://github.com/apache/trafficcontrol/issues/5274) - CDN in a Box's Traffic Vault image failed to build due 
@@ -22,10 +22,9 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/).
 - [#5191](https://github.com/apache/trafficcontrol/issues/5191) - Error from IMS requests to /federations/all
 
 ### Changed
-- Updated CDN in a Box to CentOS 8 and added `CENTOS_VERSION` Docker build arg so CDN in a Box can be built for CentOS 7, if desired
+- Updated CDN in a Box to CentOS 8 and added `RHEL_VERSION` Docker build arg so CDN in a Box can be built for CentOS 7, if desired
 - Traffic Ops: removed change log entry created during server update/revalidation unqueue
 
-
 ## [5.0.0] - 2020-10-20
 ### Added
 - Traffic Ops Ort: Disabled ntpd verification (ntpd is deprecated in CentOS)

diff --git a/build/functions.sh b/build/functions.sh
@@ -124,11 +124,17 @@ getVersion() {
 
 # ---------------------------------------
 getRhelVersion() {
-	local releasever
+	local releasever=${RHEL_VERSION:-}
+	if [ -n "$releasever" ]; then
+		echo "el${releasever}"
+		return
+	fi
+
 	local redhat_release=/etc/redhat-release
 	local default_version=7
 	if [ -e $redhat_release ]; then
 		releasever="$(rpm -q --qf '%{version}' -f $redhat_release)"
+		releasever="${releasever%%.*}"
 	else
 		echo "${redhat_release} not found, defaulting to major release ${default_version}" >/dev/stderr
 		releasever=${default_version}
@@ -176,7 +182,7 @@ checkEnvironment() {
 		return 1
 	fi
 
-	TC_VERSION='' BUILD_NUMBER='' RHEL_VERSION='' RPMBUILD='' DIST=''
+	TC_VERSION='' BUILD_NUMBER='' RPMBUILD='' DIST=''
 	TC_VERSION="$(getVersion "$TC_DIR")"
 	BUILD_NUMBER="$(getBuildNumber)"
 	GO_VERSION="$(getGoVersion "$TC_DIR")"

diff --git a/docs/source/admin/quick_howto/ciab.rst b/docs/source/admin/quick_howto/ciab.rst
@@ -44,12 +44,14 @@ These can all be supplied manually via the steps in :ref:`dev-building` (for Tra
 
 .. tip:: When updating CDN-in-a-Box, there is no need to remove old images before building new ones. Docker detects which files are updated and only reuses cached layers that have not changed.
 
-By default, CDN in a Box will be based on CentOS 8. To base CDN in a Box on CentOS 7, set the ``CENTOS_VERSION`` `build arg <https://docs.docker.com/engine/reference/builder/#arg>`_ to ``7`` (it defaults to ``8``):
+By default, CDN in a Box will be based on CentOS 8. To base CDN in a Box on CentOS 7, set the ``RHEL_VERSION`` environment variable to ``7`` (for CDN in a Box, it defaults to ``8``):
 
 .. code-block:: shell
 	:caption: Building CDN in a Box to run CentOS 7 instead of CentOS 8
 
-	docker-compose build --parallel --build-arg CENTOS_VERSION=7
+	export RHEL_VERSION=7
+	make # Builds RPMs for CentOS 7
+	docker-compose build --parallel # Builds CentOS 7 CDN in a Box images
 
 The image that takes the takes the longest to build is the ``trafficops-perl`` image. In order to avoid needing to download, build, and test 239 Perl CPAN modules each time you rebuild the image from scratch, you can run the following command while running CDN in a Box in order to skip building the Perl modules next time:
 

diff --git a/docs/source/admin/traffic_portal/installation.rst b/docs/source/admin/traffic_portal/installation.rst
@@ -16,7 +16,7 @@
 *****************************
 Traffic Portal Administration
 *****************************
-Traffic Portal is only supported on CentOS Linux distributions version 7.x. It runs on `NodeJS <https://nodejs.org/>`_ and requires version 12 or higher.
+Traffic Portal is only supported on CentOS Linux distributions version 7.x and 8.x. It runs on `NodeJS <https://nodejs.org/>`_ and requires version 12 or higher.
 
 
 Installing Traffic Portal

diff --git a/docs/source/admin/traffic_router/migrationto2-3.rst b/docs/source/admin/traffic_router/migrationto2-3.rst
@@ -33,7 +33,7 @@ Release Notes v3.0
 
 System Requirements
 ===================
-* Centos 7.2
+* Centos 7.9 or CentOS 8.2
 * OpenSSL >= 1.0.2 installed
 * JDK >= 8.0 installed or available in an accessible :manpage:`yum(8)` repository
 * :abbr:`APR (Apache Portable Runtime)` >= 1.4.8-3 installed or available in an accessible :manpage:`yum(8)` repository

diff --git a/docs/source/development/building.rst b/docs/source/development/building.rst
@@ -20,7 +20,7 @@ Building Traffic Control
 ************************
 The build steps for Traffic Control components are all pretty much the same, despite that they are written in a variety of different languages and frameworks. This is accomplished by using Docker.
 
-.. note:: Currently, both listed methods of building Traffic Control components will produce ``*.rpm`` files, meaning that the support of these components is limited to RedHat-based distributions - and none of them are currently tested (or guaranteed to work) outside of CentOS7, specifically.
+.. note:: Currently, both listed methods of building Traffic Control components will produce ``*.rpm`` files, meaning that the support of these components is limited to RedHat-based distributions - and none of them are currently tested (or guaranteed to work) outside of CentOS 7 and CentOS 8, specifically.
 
 Downloading Traffic Control
 ===========================
@@ -48,9 +48,14 @@ Usage
 
 Options
 
--q      Quiet mode. Suppresses output.
--v      Verbose mode. Lists all build output.
--l      List available projects.
+-7    Build RPMs targeting CentOS 7 (default)
+-8    Build RPMs targeting CentOS 8
+-b    Build builder Docker images before building projects
+-d    Disable compiler optimizations for debugging.
+-l    List available projects.
+-p    Pull builder Docker images, do not build them (default)
+-q    Quiet mode. Supresses output. (default)
+-v    Verbose mode. Lists all build output.
 
 If present, ``projects`` should be one or more project names. When no specific project or project list is given the default projects will be built. Valid projects:
 
@@ -162,7 +167,12 @@ This is the equivalent of running
 
 If any component fails to build, no further component builds will be attempted.
 
-Regardless of which OS the RPMs were built on, they are meant to be installed on CentOS 7. The exception is if the RPMs were built on CentOS 8, in which case the target OS for the RPMs is CentOS 8.
+By default, the RPMs will be built targeting CentOS 7. CentOS 8 is also a supported build target. You can choose which CentOS version to build for (7, 8, etc.) by setting the ``RHEL_VERSION`` environment variable:
+
+.. code-block:: shell
+	:caption: Building RPMs that target CentOS 8 without the build host needing to be CentOS 8
+
+	export RHEL_VERSION=8
 
 .. warning:: Although there are no known issues with natively-built RPMs, the official, supported method of building the RPMs is by using :ref:`pkg <pkg>` or :ref:`docker-compose <build-with-dc>`. Use natively-built RPMs at your own risk.
 

diff --git a/docs/source/overview/profiles_and_parameters.rst b/docs/source/overview/profiles_and_parameters.rst
@@ -478,7 +478,7 @@ Furthermore, for a given value of ``N``, if a Parameter exists on the :term:`cac
 
 package
 '''''''
-This is a special, reserved Config File that isn't a file at all. When a Parameter's Config File is ``package``, then its name is interpreted as the name of a package. :term:`ORT` on the server using the :ref:`Profile <profiles>` that has this Parameter will attempt to install a package by that name, interpreting the Parameter's Value_ as a version string if it is not empty. The package manager used will be :manpage:`yum(8)`, regardless of system (though the Python version of :term:`ORT` will attempt to use the host system's package manager - :manpage:`yum(8)`, :manpage:`apt(8)` and ``pacman`` are supported) but that shouldn't be a problem because only CentOS 7 is supported.
+This is a special, reserved Config File that isn't a file at all. When a Parameter's Config File is ``package``, then its name is interpreted as the name of a package. :term:`ORT` on the server using the :ref:`Profile <profiles>` that has this Parameter will attempt to install a package by that name, interpreting the Parameter's Value_ as a version string if it is not empty. The package manager used will be :manpage:`yum(8)`, regardless of system (though the Python version of :term:`ORT` will attempt to use the host system's package manager - :manpage:`yum(8)`, :manpage:`apt(8)` and ``pacman`` are supported) but that shouldn't be a problem because only CentOS 7 and CentOS 8 are supported.
 
 The current implementation of :term:`ORT` will expect Parameters to exist on a :term:`cache server`'s :ref:`Profile <profiles>` with the :ref:`Names <parameter-name>` ``astats_over_http`` and ``trafficserver`` before being run the first time, as both of these are required for a :term:`cache server` to operate within a Traffic Control CDN. It is possible to install these outside of :term:`ORT` - and indeed even outside of :manpage:`yum(8)` - but such configuration is not officially supported.
 

diff --git a/infrastructure/cdn-in-a-box/Makefile b/infrastructure/cdn-in-a-box/Makefile
@@ -29,18 +29,22 @@ ifneq ($(PWD),$(makefile_dir))
 $(error This makefile MUST be run from within its directory)
 endif
 
+ifeq ($(RHEL_VERSION),)
+	export RHEL_VERSION := 8
+else
+	RHEL_VERSION := $(shell echo $(RHEL_VERSION) | cut -f1 -d.)
+endif
+
 PKG_COMMAND := ../../pkg
-PKG_FLAGS := -v
+PKG_FLAGS := -v -$(RHEL_VERSION)
 BUILD_SUFFIX := _build
 BUILD_NUMBER := $(shell git rev-list HEAD 2>/dev/null | wc -l | tr -d '[[:space:]]').$(shell git rev-parse --short=8 HEAD)
 TC_VERSION := $(shell cat "../../VERSION")
 TOMCAT_VERSION := $(shell grep '^\s*TOMCAT_VERSION=' ../../traffic_router/build/build_rpm.sh  | cut -d= -f2)
 TOMCAT_RELEASE := $(shell grep '^\s*TOMCAT_RELEASE=' ../../traffic_router/build/build_rpm.sh  | cut -d= -f2)
 
-RHEL_VERSION := el7
-
-SPECIAL_SAUCE := $(TC_VERSION)-$(BUILD_NUMBER).$(RHEL_VERSION).x86_64.rpm
-SPECIAL_SEASONING := $(TOMCAT_VERSION).$(TOMCAT_RELEASE)-$(BUILD_NUMBER).$(RHEL_VERSION).x86_64.rpm
+SPECIAL_SAUCE := $(TC_VERSION)-$(BUILD_NUMBER).el$(RHEL_VERSION).x86_64.rpm
+SPECIAL_SEASONING := $(TOMCAT_VERSION).$(TOMCAT_RELEASE)-$(BUILD_NUMBER).el$(RHEL_VERSION).x86_64.rpm
 
 TO_SOURCE := $(wildcard ../../traffic_ops/**/*)
 TO_SOURCE += $(wildcard ../../traffic_ops_db/**/*)
@@ -51,11 +55,21 @@ TP_SOURCE := $(wildcard ../../traffic_portal/**/*)
 TR_SOURCE := $(wildcard ../../traffic_router/**/*)
 TS_SOURCE := $(wildcard ../../traffic_stats/**/*)
 
-.PHONY: clean very-clean all nearly-all debug native
+.PHONY: all build-builders clean debug native nearly-all pull-builders very-clean
 
 # Default target; builds all pre-requisite rpms from source trees
 all: cache/traffic_ops_ort.rpm traffic_monitor/traffic_monitor.rpm traffic_portal/traffic_portal.rpm traffic_ops/traffic_ops.rpm traffic_router/traffic_router.rpm traffic_router/tomcat.rpm traffic_stats/traffic_stats.rpm
 
+ifneq ($(filter build-builders,$(MAKECMDGOALS)),)
+PKG_FLAGS += -b
+ifneq ($(MAKECMDGOALS),build-builders)
+MAKECMDGOALS := $(filter-out build-builders,$(MAKECMDGOALS))
+build-builders: $(MAKECMDGOALS)
+else
+build-builders: all
+endif
+endif
+
 ifneq ($(filter debug,$(MAKECMDGOALS)),)
 PKG_FLAGS += -d
 export DEBUG_BUILD = true
@@ -79,7 +93,15 @@ native: all
 endif
 endif
 
-#.PHONY: native
+ifneq ($(filter pull-builders,$(MAKECMDGOALS)),)
+PKG_FLAGS += -p
+ifneq ($(MAKECMDGOALS),pull-builders)
+MAKECMDGOALS := $(filter-out pull-builders,$(MAKECMDGOALS))
+pull-builders: $(MAKECMDGOALS)
+else
+pull-builders: all
+endif
+endif
 
 # Actual output rpm recipies
 traffic_monitor/traffic_monitor.rpm: ../../dist/traffic_monitor-$(SPECIAL_SAUCE)

diff --git a/infrastructure/cdn-in-a-box/docker-compose.traffic-portal-test.yml b/infrastructure/cdn-in-a-box/docker-compose.traffic-portal-test.yml
@@ -32,7 +32,7 @@ services:
       context: ../..
       dockerfile: infrastructure/cdn-in-a-box/traffic_portal_integration_test/Dockerfile
       args:
-        CENTOS_VERSION: ${CENTOS_VERSION:-8}
+        RHEL_VERSION: ${RHEL_VERSION:-8}
     env_file:
       - variables.env
     hostname: portal-integration

diff --git a/infrastructure/cdn-in-a-box/docker-compose.yml b/infrastructure/cdn-in-a-box/docker-compose.yml
@@ -59,7 +59,7 @@ services:
       context: .
       dockerfile: traffic_ops/Dockerfile-go
       args:
-        CENTOS_VERSION: ${CENTOS_VERSION:-8}
+        RHEL_VERSION: ${RHEL_VERSION:-8}
         TRAFFIC_OPS_RPM: traffic_ops/traffic_ops.rpm
     depends_on:
       - db
@@ -81,7 +81,7 @@ services:
       context: ../..
       dockerfile: infrastructure/cdn-in-a-box/traffic_ops/Dockerfile
       args:
-        CENTOS_VERSION: ${CENTOS_VERSION:-8}
+        RHEL_VERSION: ${RHEL_VERSION:-8}
         TRAFFIC_OPS_RPM: infrastructure/cdn-in-a-box/traffic_ops/traffic_ops.rpm
     depends_on:
       - db
@@ -106,7 +106,7 @@ services:
       context: .
       dockerfile: traffic_portal/Dockerfile
       args:
-        CENTOS_VERSION: ${CENTOS_VERSION:-8}
+        RHEL_VERSION: ${RHEL_VERSION:-8}
         TRAFFIC_PORTAL_RPM: traffic_portal/traffic_portal.rpm
     depends_on:
       - enroller
@@ -124,7 +124,7 @@ services:
       context: .
       dockerfile: traffic_monitor/Dockerfile
       args:
-        CENTOS_VERSION: ${CENTOS_VERSION:-8}
+        RHEL_VERSION: ${RHEL_VERSION:-8}
         TRAFFIC_MONITOR_RPM: traffic_monitor/traffic_monitor.rpm
     depends_on:
       - enroller
@@ -142,7 +142,7 @@ services:
       context: .
       dockerfile: traffic_router/Dockerfile
       args:
-        CENTOS_VERSION: ${CENTOS_VERSION:-8}
+        RHEL_VERSION: ${RHEL_VERSION:-8}
         TRAFFIC_ROUTER_RPM: traffic_router/traffic_router.rpm
         TOMCAT_RPM: traffic_router/tomcat.rpm
     depends_on:
@@ -160,7 +160,7 @@ services:
       context: .
       dockerfile: traffic_stats/Dockerfile
       args:
-        CENTOS_VERSION: ${CENTOS_VERSION:-8}
+        RHEL_VERSION: ${RHEL_VERSION:-8}
     image: trafficstats
     depends_on:
       - enroller

diff --git a/infrastructure/cdn-in-a-box/edge/Dockerfile b/infrastructure/cdn-in-a-box/edge/Dockerfile
@@ -21,18 +21,18 @@
 # Based on CentOS 8
 ############################################################
 
-ARG CENTOS_VERSION=8
-FROM centos:${CENTOS_VERSION} AS common-cache-server-layers
-ARG CENTOS_VERSION=8
+ARG RHEL_VERSION=8
+FROM centos:${RHEL_VERSION} AS common-cache-server-layers
+ARG RHEL_VERSION=8
 
-RUN if [[ "${CENTOS_VERSION%%.*}" -eq 7 ]]; then \
+RUN if [[ "${RHEL_VERSION%%.*}" -eq 7 ]]; then \
         yum -y install dnf || exit 1; \
     fi
 
 EXPOSE 80
 
 RUN dnf -y install epel-release && \
-    if [[ "${CENTOS_VERSION%%.*}" -ge 8 ]]; then \
+    if [[ "${RHEL_VERSION%%.*}" -ge 8 ]]; then \
         additional_packages='compat-openssl10 pkgconf-pkg-config' || \
         exit 1; \
     else \
@@ -81,7 +81,7 @@ RUN dnf -y install epel-release && \
         perl-URI                \
         tcl                     \
         $additional_packages && \
-    if [[ "${CENTOS_VERSION%%.*}" -eq 8 ]]; then \
+    if [[ "${RHEL_VERSION%%.*}" -eq 8 ]]; then \
         set -- \
             # Pretend that we have the right library versions.
             # TODO: Use a proper CentOS 7 or 8 RPM once trafficserver

diff --git a/infrastructure/cdn-in-a-box/mid/Dockerfile b/infrastructure/cdn-in-a-box/mid/Dockerfile
@@ -21,18 +21,18 @@
 # Based on CentOS 8
 ############################################################
 
-ARG CENTOS_VERSION=8
-FROM centos:${CENTOS_VERSION} AS common-cache-server-layers
-ARG CENTOS_VERSION=8
+ARG RHEL_VERSION=8
+FROM centos:${RHEL_VERSION} AS common-cache-server-layers
+ARG RHEL_VERSION=8
 
-RUN if [[ "${CENTOS_VERSION%%.*}" -eq 7 ]]; then \
+RUN if [[ "${RHEL_VERSION%%.*}" -eq 7 ]]; then \
         yum -y install dnf || exit 1; \
     fi
 
 EXPOSE 80
 
 RUN dnf -y install epel-release && \
-    if [[ "${CENTOS_VERSION%%.*}" -ge 8 ]]; then \
+    if [[ "${RHEL_VERSION%%.*}" -ge 8 ]]; then \
         additional_packages='compat-openssl10 pkgconf-pkg-config' || \
         exit 1; \
     else \
@@ -81,7 +81,7 @@ RUN dnf -y install epel-release && \
         perl-URI                \
         tcl                     \
         $additional_packages && \
-    if [[ "${CENTOS_VERSION%%.*}" -eq 8 ]]; then \
+    if [[ "${RHEL_VERSION%%.*}" -eq 8 ]]; then \
         set -- \
             # Pretend that we have the right library versions.
             # TODO: Use a proper CentOS 7 or 8 RPM once trafficserver

diff --git a/infrastructure/cdn-in-a-box/optional/docker-compose.socksproxy.yml b/infrastructure/cdn-in-a-box/optional/docker-compose.socksproxy.yml
@@ -45,7 +45,7 @@ services:
       context: .
       dockerfile: optional/socksproxy/Dockerfile
       args:
-        CENTOS_VERSION: 8
+        RHEL_VERSION: 8
     hostname: socksproxy
     domainname: infra.ciab.test
     volumes:

diff --git a/infrastructure/cdn-in-a-box/optional/docker-compose.vnc.yml b/infrastructure/cdn-in-a-box/optional/docker-compose.vnc.yml
@@ -48,7 +48,7 @@ services:
       context: .
       dockerfile: optional/vnc/Dockerfile
       args:
-        CENTOS_VERSION: 8
+        RHEL_VERSION: 8
         VNC_BUILD_USER: "ciabuser"
     depends_on:
       - dns

diff --git a/infrastructure/cdn-in-a-box/optional/socksproxy/Dockerfile b/infrastructure/cdn-in-a-box/optional/socksproxy/Dockerfile
@@ -19,11 +19,11 @@
 # Dockerfile to build optional CiaB Socks Proxy
 # Based on CentOS 8
 ############################################################
-ARG CENTOS_VERSION=8
-FROM centos:${CENTOS_VERSION}
-ARG CENTOS_VERSION=8
+ARG RHEL_VERSION=8
+FROM centos:${RHEL_VERSION}
+ARG RHEL_VERSION=8
 
-RUN if [[ "${CENTOS_VERSION%%.*}" -eq 7 ]]; then \
+RUN if [[ "${RHEL_VERSION%%.*}" -eq 7 ]]; then \
         yum -y install dnf || exit 1; \
     fi
-Original file line number
+Diff line change
@@ Expand Up @@
     package
     '''''''
-    This is a special, reserved Config File that isn't a file at all. When a Parameter's Config File is ``package``, then its name is interpreted as the name of a package. :term:`ORT` on the server using the :ref:`Profile <profiles>` that has this Parameter will attempt to install a package by that name, interpreting the Parameter's Value_ as a version string if it is not empty. The package manager used will be :manpage:`yum(8)`, regardless of system (though the Python version of :term:`ORT` will attempt to use the host system's package manager - :manpage:`yum(8)`, :manpage:`apt(8)` and ``pacman`` are supported) but that shouldn't be a problem because only CentOS 7 is supported.
+    This is a special, reserved Config File that isn't a file at all. When a Parameter's Config File is ``package``, then its name is interpreted as the name of a package. :term:`ORT` on the server using the :ref:`Profile <profiles>` that has this Parameter will attempt to install a package by that name, interpreting the Parameter's Value_ as a version string if it is not empty. The package manager used will be :manpage:`yum(8)`, regardless of system (though the Python version of :term:`ORT` will attempt to use the host system's package manager - :manpage:`yum(8)`, :manpage:`apt(8)` and ``pacman`` are supported) but that shouldn't be a problem because only CentOS 7 and CentOS 8 are supported.
     The current implementation of :term:`ORT` will expect Parameters to exist on a :term:`cache server`'s :ref:`Profile <profiles>` with the :ref:`Names <parameter-name>` ``astats_over_http`` and ``trafficserver`` before being run the first time, as both of these are required for a :term:`cache server` to operate within a Traffic Control CDN. It is possible to install these outside of :term:`ORT` - and indeed even outside of :manpage:`yum(8)` - but such configuration is not officially supported.
@@ Expand Down @@