acquisition/victorialogs: add new datasource (crowdsecurity#3310)

* acquisition/victorialogs: add new datasource

Data source supports:
- cat mode with automatic adjustment of poll interval (same as one at Loki datasource)
- tail mode by using tailing API

.github/workflows/go-tests.yml

@@ -114,6 +114,17 @@ jobs:
           --health-retries 5
           --health-start-period 30s
 
+      victorialogs:
+        image: victoriametrics/victoria-logs:v1.5.0-victorialogs
+        ports:
+          - "9428:9428"
+        options: >-
+          --name=victorialogs1
+          --health-cmd "wget -q -O - http://0.0.0.0:9428"
+          --health-interval 30s
+          --health-timeout 10s
+          --health-retries 5
+          --health-start-period 30s
     steps:
 
     - name: Check out CrowdSec repository

.golangci.yml

@@ -97,6 +97,7 @@ linters-settings:
           - "!**/pkg/acquisition/modules/kubernetesaudit/k8s_audit.go"
           - "!**/pkg/acquisition/modules/loki/loki.go"
           - "!**/pkg/acquisition/modules/loki/timestamp_test.go"
+          - "!**/pkg/acquisition/modules/victorialogs/victorialogs.go"
           - "!**/pkg/acquisition/modules/s3/s3.go"
           - "!**/pkg/acquisition/modules/syslog/syslog.go"
           - "!**/pkg/acquisition/modules/wineventlog/wineventlog_windows.go"
@@ -398,6 +399,11 @@ issues:
       path: pkg/acquisition/modules/loki/internal/lokiclient/loki_client.go
       text: "confusing-naming: Method 'QueryRange' differs only by capitalization to method 'queryRange' in the same source file"
 
+    - linters:
+        - revive
+      path: pkg/acquisition/modules/victorialogs/internal/vlclient/vl_client.go
+      text: "confusing-naming: Method 'QueryRange' differs only by capitalization to method 'queryRange' in the same source file"
+
     - linters:
         - revive
       path: cmd/crowdsec-cli/copyfile.go

Makefile

@@ -138,6 +138,7 @@ COMPONENTS := \
 	datasource_journalctl \
 	datasource_kinesis \
 	datasource_loki \
+	datasource_victorialogs \
 	datasource_s3 \
 	datasource_syslog \
 	datasource_wineventlog \

pkg/acquisition/modules/victorialogs/internal/vlclient/types.go

@@ -0,0 +1,12 @@
+package vlclient
+
+import (
+	"time"
+)
+
+// Log represents a VictoriaLogs log line
+// See: https://docs.victoriametrics.com/victorialogs/querying/#querying-logs
+type Log struct {
+	Message string    `json:"_msg"`
+	Time    time.Time `json:"_time"`
+}