Drop EoL EL4 support

lib/beaker/host/unix/pkg.rb

@@ -37,9 +37,6 @@ def check_for_package(name, opts = {})
         self[:sles_rpmkeys_nightly_pl_imported] = true
       end
       result = execute("zypper --gpg-auto-import-keys se -i --match-exact #{name}", opts) { |result| result }
-    when /el-4/
-      @logger.debug("Package query not supported on rhel4")
-      return false
     when /amazon|cisco|fedora|centos|redhat|eos|el-/
       result = execute("rpm -q #{name}", opts) { |result| result }
     when /ubuntu|debian/
@@ -85,8 +82,6 @@ def install_package(name, cmdline_args = '', version = nil, opts = {})
     case self['platform']
     when /opensuse|sles-/
       execute("zypper --non-interactive --gpg-auto-import-keys in #{name}", opts)
-    when /el-4/
-      @logger.debug("Package installation not supported on rhel4")
     when /amazon-2023|el-(8|9|1[0-9])|fedora/
       name = "#{name}-#{version}" if version
       execute("dnf -y #{cmdline_args} install #{name}", opts)
@@ -170,8 +165,6 @@ def uninstall_package(name, cmdline_args = '', opts = {})
     case self['platform']
     when /opensuse|sles-/
       execute("zypper --non-interactive rm #{name}", opts)
-    when /el-4/
-      @logger.debug("Package uninstallation not supported on rhel4")
     when /amazon-2023|el-(8|9|1[0-9])|fedora/
       execute("dnf -y #{cmdline_args} remove #{name}", opts)
     when /cisco|centos|redhat|eos|el-[1-7]-/
@@ -200,8 +193,6 @@ def upgrade_package(name, cmdline_args = '', opts = {})
     case self['platform']
     when /opensuse|sles-/
       execute("zypper --non-interactive --no-gpg-checks up #{name}", opts)
-    when /el-4/
-      @logger.debug("Package upgrade is not supported on rhel4")
     when /fedora-(2[2-9]|3[0-9])/
       execute("dnf -y #{cmdline_args} update #{name}", opts)
     when /cisco|fedora|centos|redhat|eos|el-/

lib/beaker/options/parser.rb

@@ -364,10 +364,10 @@ def normalize_args
 
         @validator.validate_master_count(master)
 
-        # check that windows/el-4 boxes are only agents (solaris can be a master in foss cases)
+        # check that windows boxes are only agents (solaris can be a master in foss cases)
         @options[:HOSTS].each_key do |name|
           host = @options[:HOSTS][name]
-          test_host_roles(name, host) if /windows|el-4/.match?(host[:platform])
+          test_host_roles(name, host) if host[:platform] == 'windows'
 
           # check to see if a custom user account has been provided, if so use it
           host[:user] = host[:ssh][:user] if host[:ssh] && host[:ssh][:user]

spec/beaker/host/unix/pkg_spec.rb

@@ -124,12 +124,6 @@ def exec
         expect(instance.check_for_package(pkg)).to be === true
       end
 
-      it "returns false for el-4" do
-        @opts = { 'platform' => 'el-4-is-me' }
-        pkg = 'el-4_package'
-        expect(instance.check_for_package(pkg)).to be === false
-      end
-
       it "raises on unknown platform" do
         @opts = { 'platform' => 'nope-is-me' }
         pkg = 'nope_package'

spec/beaker/options/parser_spec.rb

@@ -559,7 +559,6 @@ def fake_hosts_file_for_platform(hosts, platform)
 
         context "restricts agents" do
           it_behaves_like('a platform supporting only agents', 'windows-version-arch')
-          it_behaves_like('a platform supporting only agents', 'el-4-arch')
         end
 
         context "ssh user" do