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grafana-loki-tempo-fluentbit.tf
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grafana-loki-tempo-fluentbit.tf
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resource "kubernetes_namespace" "tracing" {
metadata {
name = "tracing"
}
depends_on = [
module.kind-istio-metallb
]
}
resource "helm_release" "tempo" {
name = "tempo"
repository = "https://grafana.github.io/helm-charts"
chart = "tempo"
version = var.TEMPO_VERSION
namespace = kubernetes_namespace.tracing.metadata[0].name
values = [
<<EOF
tempo:
extraArgs:
"distributor.log-received-traces": true
EOF
]
}
resource "helm_release" "loki" {
name = "loki"
repository = "https://grafana.github.io/helm-charts"
chart = "loki"
version = var.LOKI_VERSION
namespace = kubernetes_namespace.tracing.metadata[0].name
}
resource "helm_release" "opentelemetry-collector" {
name = "opentelemetry-collector"
repository = "https://open-telemetry.github.io/opentelemetry-helm-charts"
chart = "opentelemetry-collector"
version = var.OPENTELEMETRY_COLLECTOR_VERSION
namespace = kubernetes_namespace.tracing.metadata[0].name
values = [
<<EOF
config:
receivers:
zipkin:
endpoint: 0.0.0.0:9411
exporters:
otlp:
endpoint: ${helm_release.tempo.name}.${kubernetes_namespace.tracing.metadata[0].name}.svc.cluster.local:55680
tls:
insecure: true
service:
pipelines:
traces:
receivers: [zipkin]
exporters: [otlp]
ports:
otlp:
enabled: true
containerPort: 55680
servicePort: 55680
hostPort: 55680
protocol: TCP
zipkin:
enabled: true
containerPort: 9411
servicePort: 9411
hostPort: 9411
protocol: TCP
agentCollector:
enabled: false
standaloneCollector:
enabled: true
EOF
]
}
resource "helm_release" "fluent-bit" {
name = "fluent-bit"
repository = "https://fluent.github.io/helm-charts"
chart = "fluent-bit"
version = var.FLUENT_BIT_VERSION
namespace = kubernetes_namespace.tracing.metadata[0].name
values = [
<<EOF
logLevel: trace
config:
service: |
[SERVICE]
Flush 1
Daemon Off
Log_Level trace
Parsers_File custom_parsers.conf
HTTP_Server On
HTTP_Listen 0.0.0.0
HTTP_Port {{ .Values.service.port }}
inputs: |
[INPUT]
Name tail
Path /var/log/containers/*istio-proxy*.log
Parser cri
Tag kube.*
Mem_Buf_Limit 5MB
outputs: |
[OUTPUT]
name loki
match *
host ${helm_release.loki.name}.${kubernetes_namespace.tracing.metadata[0].name}.svc
port 3100
tenant_id ""
labels job=fluentbit
label_keys $trace_id
auto_kubernetes_labels on
customParsers: |
[PARSER]
Name cri
Format regex
Regex ^(?<time>[^ ]+) (?<stream>stdout|stderr) (?<logtag>[^ ]*) (?<message>.*)$
Time_Key time
Time_Format %Y-%m-%dT%H:%M:%S.%L%z
EOF
]
depends_on = [
helm_release.tempo,
helm_release.loki,
]
}
resource "helm_release" "grafana" {
name = "grafana"
repository = "https://grafana.github.io/helm-charts"
chart = "grafana"
version = var.GRAFANA_VERSION
namespace = kubernetes_namespace.tracing.metadata[0].name
values = [
<<EOF
datasources:
datasources.yaml:
apiVersion: 1
datasources:
- name: Tempo
type: tempo
access: browser
orgId: 1
uid: tempo
url: http://${helm_release.tempo.name}.${kubernetes_namespace.tracing.metadata[0].name}.svc:3100
isDefault: true
editable: true
- name: Loki
type: loki
access: browser
orgId: 1
uid: loki
url: http://${helm_release.loki.name}.${kubernetes_namespace.tracing.metadata[0].name}.svc:3100
isDefault: false
editable: true
jsonData:
derivedFields:
- datasourceName: Tempo
matcherRegex: "traceID=(\\w+)"
name: TraceID
url: "$$${__value.raw}"
datasourceUid: tempo
env:
JAEGER_AGENT_PORT: 6831
adminUser: admin
adminPassword: password
service:
type: ClusterIP
EOF
]
}
resource "kubectl_manifest" "grafana_route" {
for_each = {
grafana-gateway = <<EOF
apiVersion: networking.istio.io/v1beta1
kind: Gateway
metadata:
name: grafana
spec:
selector:
istio: ingressgateway
servers:
- port:
number: 80
name: http
protocol: HTTP
hosts:
- grafana.${module.kind-istio-metallb.ingress_ip_address}.nip.io
EOF
grafana-virtualservice = <<EOF
apiVersion: networking.istio.io/v1beta1
kind: VirtualService
metadata:
name: grafana
spec:
hosts:
- grafana.${module.kind-istio-metallb.ingress_ip_address}.nip.io
gateways:
- grafana
http:
- route:
- destination:
host: ${helm_release.grafana.name}.${kubernetes_namespace.tracing.metadata[0].name}.svc.cluster.local
port:
number: 80
EOF
}
yaml_body = each.value
override_namespace = kubernetes_namespace.tracing.metadata[0].name
}