ci: revisit Go linter

.golangci.yml

@@ -1,36 +1,51 @@
-timeout: 10m
-
-issues:
-  exclude-use-default: false
-  exclude:
-    # EXC0001 errcheck: Almost all programs ignore errors on these functions and in most cases it's ok
-    - Error return value of .((os\.)?std(out|err)\..*|.*Close|.*Flush|os\.Remove(All)?|.*print(f|ln)?|os\.(Un)?Setenv). (is not checked|Errors unhandled)
-
-  exclude-dirs:
-    # This directory contains copy code from upstream kubernetes/kubernetes, skip it.
-    - internal/kubernetes
-    # This is mostly copied from upstream, rather than fixing that code here just ignore the errors.
-    - internal/podutils
-
+version: "2"
 linters:
   enable:
-    - errcheck
-    - staticcheck
+    - copyloopvar
+    - gosec
+    - lll
+    - misspell
     - unconvert
+  settings:
+    gosec:
+      excludes:
+        - G304
+    lll:
+      line-length: 200
+  exclusions:
+    generated: lax
+    rules:
+      - path: (.+)\.go$
+        text: Error return value of .((os\.)?std(out|err)\..*|.*Close|.*Flush|os\.Remove(All)?|.*print(f|ln)?|os\.(Un)?Setenv). (is not checked|Errors unhandled)
+    paths:
+      - internal/kubernetes
+      - internal/podutils
+      - third_party$
+      - builtin$
+      - examples$
+formatters:
+  enable:
     - gofmt
     - goimports
-    - ineffassign
-    - govet
-    - unused
-    - misspell
-    - gosec
-    - copyloopvar # Checks for pointers to enclosing loop variables
-    - tenv # Detects using os.Setenv instead of t.Setenv since Go 1.17
-    - lll
+  exclusions:
+    generated: lax
+    paths:
+      - internal/kubernetes
+      - internal/podutils
+      - third_party$
+      - builtin$
+      - examples$
+issues:
+  # Maximum issues count per one linter.
+  # Set to 0 to disable.
+  # Default: 50
+  max-issues-per-linter: 0
 
-linters-settings:
-  gosec:
-    excludes:
-      - G304 # Potential file inclusion via variable
-  lll:
-    line-length: 200
+  # Maximum count of issues with the same text.
+  # Set to 0 to disable.
+  # Default: 3
+  max-same-issues: 0
+
+  # Make issues output unique by line.
+  # Default: true
+  uniq-by-line: false