[7.x](backport #27256) Support endpoint on every platform but centos/redhat 7 on arm

x-pack/elastic-agent/pkg/agent/application/info/inject_config.go

@@ -10,11 +10,16 @@ import (
 	"github.com/elastic/beats/v7/x-pack/elastic-agent/pkg/agent/application/paths"
 	"github.com/elastic/beats/v7/x-pack/elastic-agent/pkg/agent/errors"
 	"github.com/elastic/beats/v7/x-pack/elastic-agent/pkg/config"
+	"github.com/elastic/go-sysinfo"
 )
 
 // InjectAgentConfig injects config to a provided configuration.
 func InjectAgentConfig(c *config.Config) error {
-	globalConfig := agentGlobalConfig()
+	globalConfig, err := agentGlobalConfig()
+	if err != nil {
+		return err
+	}
+
 	if err := c.Merge(globalConfig); err != nil {
 		return errors.New("failed to inject agent global config", err, errors.TypeConfig)
 	}
@@ -24,15 +29,26 @@ func InjectAgentConfig(c *config.Config) error {
 
 // agentGlobalConfig gets global config used for resolution of variables inside configuration
 // such as ${path.data}.
-func agentGlobalConfig() map[string]interface{} {
+func agentGlobalConfig() (map[string]interface{}, error) {
+	hostInfo, err := sysinfo.Host()
+	if err != nil {
+		return nil, err
+	}
+
 	return map[string]interface{}{
 		"path": map[string]interface{}{
 			"data":   paths.Data(),
 			"config": paths.Config(),
 			"home":   paths.Home(),
 			"logs":   paths.Logs(),
 		},
-		"runtime.os":   runtime.GOOS,
-		"runtime.arch": runtime.GOARCH,
-	}
+		"runtime.os":             runtime.GOOS,
+		"runtime.arch":           runtime.GOARCH,
+		"runtime.osinfo.type":    hostInfo.Info().OS.Type,
+		"runtime.osinfo.family":  hostInfo.Info().OS.Family,
+		"runtime.osinfo.version": hostInfo.Info().OS.Version,
+		"runtime.osinfo.major":   hostInfo.Info().OS.Major,
+		"runtime.osinfo.minor":   hostInfo.Info().OS.Minor,
+		"runtime.osinfo.patch":   hostInfo.Info().OS.Patch,
+	}, nil
 }

x-pack/elastic-agent/pkg/agent/application/pipeline/emitter/controller.go

@@ -75,6 +75,7 @@ func (e *Controller) Update(c *config.Config) error {
 	if err != nil {
 		return errors.New(err, "could not create the AST from the configuration", errors.TypeConfig)
 	}
+
 	rawAst, err := transpiler.NewAST(m)
 	if err != nil {
 		return errors.New(err, "could not create the AST from the configuration", errors.TypeConfig)

x-pack/elastic-agent/spec/endpoint.yml

@@ -64,4 +64,4 @@ rules:
     - revision
 
 when: length(${fleet}) > 0 and length(${inputs}) > 0 and hasKey(${output}, 'elasticsearch')
-constraints: ${runtime.arch} != 'arm64'
+constraints: ${runtime.arch} != 'arm64' and ${runtime.family} != 'redhat' and ${runtime.major} != '7'