all: add patch to minimize unnecessary logs

Currently, running default otelopscol (opentelemetry-operations-collector)
will thrown the errors as described in [1].

This patch fix it by removing scraper "process" and "processes" from
hostmetrics and by changing default log level from "info" to "error".

[1] https://cloud.google.com/logging/docs/agent/ops-agent/troubleshooting#log-spam

3 files changed, 42 insertions, 2 deletions

diff --git a/.SRCINFO b/.SRCINFO
index 5a3f506d3ae7..804c5dd70246 100644
--- a/.SRCINFO
+++ b/.SRCINFO
@@ -1,7 +1,7 @@
 pkgbase = google-cloud-ops-agent-git
 	pkgdesc = Ops Agents that are part of the Google Cloud Operations product suite (specifically Cloud Logging and Cloud Monitoring)
 	pkgver = 2.7.0.r7.g43187fc
-	pkgrel = 1
+	pkgrel = 2
 	url = https://github.com/GoogleCloudPlatform/ops-agent
 	arch = x86_64
 	license = Apache License 2.0
@@ -16,10 +16,12 @@ pkgbase = google-cloud-ops-agent-git
 	source = fluent-bit::git+https://github.com/fluent/fluent-bit.git
 	source = opentelemetry-operations-collector::git+https://github.com/GoogleCloudPlatform/opentelemetry-operations-collector.git
 	source = opentelemetry-java-contrib::git+https://github.com/open-telemetry/opentelemetry-java-contrib.git
+	source = 0001-apps-hostmetrics.patch
 	md5sums = SKIP
 	md5sums = SKIP
 	md5sums = SKIP
 	md5sums = SKIP
 	md5sums = SKIP
+	md5sums = a5cbb09890214d1c14a2cf33267808c5
 
 pkgname = google-cloud-ops-agent-git
diff --git a/0001-apps-hostmetrics.patch b/0001-apps-hostmetrics.patch
new file mode 100644
index 000000000000..8a5a8a807d60
--- /dev/null
+++ b/0001-apps-hostmetrics.patch
@@ -0,0 +1,35 @@
+diff --git a/apps/hostmetrics.go b/apps/hostmetrics.go
+index 84bdc49..14a77f7 100644
+--- a/apps/hostmetrics.go
++++ b/apps/hostmetrics.go
+@@ -43,8 +43,6 @@ func (r MetricsReceiverHostmetrics) Pipelines() []otel.Pipeline {
+ 					"filesystem": struct{}{},
+ 					"network":    struct{}{},
+ 					"paging":     struct{}{},
+-					"process":    struct{}{},
+-					"processes":  struct{}{},
+ 				},
+ 			},
+ 		},
+diff --git a/confgenerator/confgenerator.go b/confgenerator/confgenerator.go
+index 1916bcd..a8443ec 100644
+--- a/confgenerator/confgenerator.go
++++ b/confgenerator/confgenerator.go
+@@ -47,7 +47,7 @@ func (uc *UnifiedConfig) GenerateOtelConfig(hostInfo *host.InfoStat) (string, er
+ 	}.Pipeline()
+ 
+ 	if uc.Metrics.Service.LogLevel == "" {
+-		uc.Metrics.Service.LogLevel = "info"
++		uc.Metrics.Service.LogLevel = "error"
+ 	}
+ 	otelConfig, err := otel.ModularConfig{
+ 		LogLevel:  uc.Metrics.Service.LogLevel,
+@@ -126,7 +126,7 @@ func (uc *UnifiedConfig) GenerateFluentBitConfigs(logsDir string, stateDir strin
+ func (l *Logging) generateFluentbitComponents(userAgent string, hostInfo *host.InfoStat) ([]fluentbit.Component, error) {
+ 	var out []fluentbit.Component
+ 	if l.Service.LogLevel == "" {
+-		l.Service.LogLevel = "info"
++		l.Service.LogLevel = "error"
+ 	}
+ 	out = append(out, fluentbit.Service{LogLevel: l.Service.LogLevel}.Component())
+ 
diff --git a/PKGBUILD b/PKGBUILD
index 70a9d484a172..0b8f9dbed355 100644
--- a/PKGBUILD
+++ b/PKGBUILD
@@ -2,7 +2,7 @@
 
 pkgname=google-cloud-ops-agent-git
 pkgver=2.7.0.r7.g43187fc
-pkgrel=1
+pkgrel=2
 
 pkgdesc="Ops Agents that are part of the Google Cloud Operations product suite (specifically Cloud Logging and Cloud Monitoring)"
 arch=(x86_64)
@@ -30,6 +30,7 @@ source=(
 	"fluent-bit::git+https://github.com/fluent/fluent-bit.git"
 	"opentelemetry-operations-collector::git+https://github.com/GoogleCloudPlatform/opentelemetry-operations-collector.git"
 	"opentelemetry-java-contrib::git+https://github.com/open-telemetry/opentelemetry-java-contrib.git"
+	"0001-apps-hostmetrics.patch"
 )
 md5sums=(
 	'SKIP'
@@ -37,6 +38,7 @@ md5sums=(
 	'SKIP'
 	'SKIP'
 	'SKIP'
+	'aa21cd77ff9aba8ba7b8583c97e71c8f'
 )
 
 pkgver() {
@@ -56,6 +58,7 @@ prepare() {
 	git config submodule."submodules/opentelemetry-java-contrib".url \
 		"${srcdir}/opentelemetry-java-contrib"
 	git submodule update
+	git apply "${srcdir}/0001-apps-hostmetrics.patch"
 }
 
 build() {