Race condition in it_sidecar  #130

Open
Open
Race condition in it_sidecar #130

Description

@apesternikov
apesternikov
opened on Mar 22, 2023

@harjsing7 reported a race condition in a sidecar on pod removal.

2023-03-22T05:44:02Z | INFO | 2023/03/22 05:44:02 panic: close of closed channel
2023-03-22T05:44:02Z | INFO | 2023/03/22 05:44:02 2023-03-22T05:44:02Z | INFO | 2023/03/22 05:44:02 goroutine 108 [running]:
2023-03-22T05:44:02Z | INFO | 2023/03/22 05:44:02 github.com/adobe/rules_gitops/testing/it_sidecar/stern.(*Tail).Start.func2()
2023-03-22T05:44:02Z | INFO | 2023/03/22 05:44:02 external/com_adobe_rules_gitops/testing/it_sidecar/stern/tail.go:86 +0x45
2023-03-22T05:44:02Z | INFO | 2023/03/22 05:44:02 created by github.com/adobe/rules_gitops/testing/it_sidecar/stern.(*Tail).Start
2023-03-22T05:44:02Z | INFO | 2023/03/22 05:44:02 external/com_adobe_rules_gitops/testing/it_sidecar/stern/tail.go:84 +0x12b
2023-03-22T05:44:02Z | INFO | 2023/03/22 05:44:02 exit status 2

The closing of the channel can happen in two spots:

rules_gitops/testing/it_sidecar/stern/tail.go

Line 86 in eafc9c3

close(t.closed)

rules_gitops/testing/it_sidecar/stern/main.go

Line 56 in eafc9c3

tails[id].Close()

We need to handle this situation properly, using cancellable context would be appropriate here
Also, we should add a warning in a log on pod deletion, since it is typically an indication of a problem in the test - like pod crashlooping or even early test failure (configurable)

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      , 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Add copy buttons to all 
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}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '

      Skip to content
      Race condition in it_sidecar  #130
      Open
      Open
      Race condition in it_sidecar #130
      Description
      @apesternikov
      apesternikov
      opened on Mar 22, 2023
      @harjsing7 reported a race condition in a sidecar on pod removal.
      2023-03-22T05:44:02Z | INFO | 2023/03/22 05:44:02 panic: close of closed channel
2023-03-22T05:44:02Z | INFO | 2023/03/22 05:44:02 2023-03-22T05:44:02Z | INFO | 2023/03/22 05:44:02 goroutine 108 [running]:
2023-03-22T05:44:02Z | INFO | 2023/03/22 05:44:02 github.com/adobe/rules_gitops/testing/it_sidecar/stern.(*Tail).Start.func2()
2023-03-22T05:44:02Z | INFO | 2023/03/22 05:44:02 external/com_adobe_rules_gitops/testing/it_sidecar/stern/tail.go:86 +0x45
2023-03-22T05:44:02Z | INFO | 2023/03/22 05:44:02 created by github.com/adobe/rules_gitops/testing/it_sidecar/stern.(*Tail).Start
2023-03-22T05:44:02Z | INFO | 2023/03/22 05:44:02 external/com_adobe_rules_gitops/testing/it_sidecar/stern/tail.go:84 +0x12b
2023-03-22T05:44:02Z | INFO | 2023/03/22 05:44:02 exit status 2

      The closing of the channel can happen in two spots:
      rules_gitops/testing/it_sidecar/stern/tail.go
      
Line 86
in
eafc9c3
      close(t.closed) 

      rules_gitops/testing/it_sidecar/stern/main.go
      
Line 56
in
eafc9c3
      tails[id].Close() 
      We need to handle this situation properly, using cancellable context would be appropriate here
      
Also, we should add a warning in a log on pod deletion, since it is typically an indication of a problem in the test - like pod crashlooping or even early test failure (configurable)
      Metadata
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          No branches or pull requests
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, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Force GitHub README to respect dark mode\n(function() {\n var style = document.createElement('style');\n style.textContent = '\n .markdown-body {\n color-scheme: dark light;\n }\n .markdown-body pre { background: #161b22 !important; }\n .markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }\n .markdown-body table th, .markdown-body table td { border-color: #30363d !important; }\n .markdown-body img { background: #0d1117; }\n .markdown-body blockquote { border-left-color: #8b949e; }\n .markdown-body hr { border-color: #30363d; }\n ';\n document.head.appendChild(style);\n})();", "GitHub Dark Mode README Fix");
}
} catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

          Skip to content
          Race condition in it_sidecar  #130
          Open
          Open
          Race condition in it_sidecar #130
          Description
          @apesternikov
          apesternikov
          opened on Mar 22, 2023
          @harjsing7 reported a race condition in a sidecar on pod removal.
          2023-03-22T05:44:02Z | INFO | 2023/03/22 05:44:02 panic: close of closed channel
2023-03-22T05:44:02Z | INFO | 2023/03/22 05:44:02 2023-03-22T05:44:02Z | INFO | 2023/03/22 05:44:02 goroutine 108 [running]:
2023-03-22T05:44:02Z | INFO | 2023/03/22 05:44:02 github.com/adobe/rules_gitops/testing/it_sidecar/stern.(*Tail).Start.func2()
2023-03-22T05:44:02Z | INFO | 2023/03/22 05:44:02 external/com_adobe_rules_gitops/testing/it_sidecar/stern/tail.go:86 +0x45
2023-03-22T05:44:02Z | INFO | 2023/03/22 05:44:02 created by github.com/adobe/rules_gitops/testing/it_sidecar/stern.(*Tail).Start
2023-03-22T05:44:02Z | INFO | 2023/03/22 05:44:02 external/com_adobe_rules_gitops/testing/it_sidecar/stern/tail.go:84 +0x12b
2023-03-22T05:44:02Z | INFO | 2023/03/22 05:44:02 exit status 2

          The closing of the channel can happen in two spots:
          rules_gitops/testing/it_sidecar/stern/tail.go
          
Line 86
in
eafc9c3
          close(t.closed) 

          rules_gitops/testing/it_sidecar/stern/main.go
          
Line 56
in
eafc9c3
          tails[id].Close() 
          We need to handle this situation properly, using cancellable context would be appropriate here
          
Also, we should add a warning in a log on pod deletion, since it is typically an indication of a problem in the test - like pod crashlooping or even early test failure (configurable)
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              No branches or pull requests
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, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Highlight search terms from Google/DuckDuckGo/Bing referrer\n(function() {\n var ref = document.referrer;\n var terms = [];\n \n if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {\n var url = new URL(ref);\n var q = url.searchParams.get('q') || url.searchParams.get('p');\n if (q) {\n terms = q.split(/\\s+/).filter(function(t) { return t.length > 2; });\n }\n }\n \n if (terms.length === 0) return;\n \n var style = document.createElement('style');\n style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';\n document.head.appendChild(style);\n \n function highlight(node) {\n if (node.nodeType === 3) { // text node\n var text = node.textContent;\n var found = false;\n terms.forEach(function(term) {\n var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\\]\\\\]/g, '\\\\') + ')', 'gi');\n if (regex.test(text)) {\n found = true;\n var frag = document.createDocumentFragment();\n var parts = text.split(regex);\n parts.forEach(function(part, i) {\n if (i % 2 === 0) {\n frag.appendChild(document.createTextNode(part));\n } else {\n var span = document.createElement('span');\n span.className = 'userscript-highlight';\n span.textContent = part;\n frag.appendChild(span);\n }\n });\n node.parentNode.replaceChild(frag, node);\n }\n });\n } else if (node.nodeType === 1 && node.childNodes) { // element\n var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];\n if (!skipTags.includes(node.tagName)) {\n Array.from(node.childNodes).forEach(highlight);\n }\n }\n }\n \n highlight(document.body);\n \n // Re-highlight on dynamic content\n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1 || node.nodeType === 3) highlight(node);\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Highlight Search Terms");
}
} catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

              Skip to content
              Race condition in it_sidecar  #130
              Open
              Open
              Race condition in it_sidecar #130
              Description
              @apesternikov
              apesternikov
              opened on Mar 22, 2023
              @harjsing7 reported a race condition in a sidecar on pod removal.
              2023-03-22T05:44:02Z | INFO | 2023/03/22 05:44:02 panic: close of closed channel
2023-03-22T05:44:02Z | INFO | 2023/03/22 05:44:02 2023-03-22T05:44:02Z | INFO | 2023/03/22 05:44:02 goroutine 108 [running]:
2023-03-22T05:44:02Z | INFO | 2023/03/22 05:44:02 github.com/adobe/rules_gitops/testing/it_sidecar/stern.(*Tail).Start.func2()
2023-03-22T05:44:02Z | INFO | 2023/03/22 05:44:02 external/com_adobe_rules_gitops/testing/it_sidecar/stern/tail.go:86 +0x45
2023-03-22T05:44:02Z | INFO | 2023/03/22 05:44:02 created by github.com/adobe/rules_gitops/testing/it_sidecar/stern.(*Tail).Start
2023-03-22T05:44:02Z | INFO | 2023/03/22 05:44:02 external/com_adobe_rules_gitops/testing/it_sidecar/stern/tail.go:84 +0x12b
2023-03-22T05:44:02Z | INFO | 2023/03/22 05:44:02 exit status 2

              The closing of the channel can happen in two spots:
              rules_gitops/testing/it_sidecar/stern/tail.go
              
Line 86
in
eafc9c3
              close(t.closed) 

              rules_gitops/testing/it_sidecar/stern/main.go
              
Line 56
in
eafc9c3
              tails[id].Close() 
              We need to handle this situation properly, using cancellable context would be appropriate here
              
Also, we should add a warning in a log on pod deletion, since it is typically an indication of a problem in the test - like pod crashlooping or even early test failure (configurable)
              Metadata
              Metadata
              Assignees
              No one assigned
                Labels
                No labels
                No labels
                Type
                No type
                Projects
                No projects
                  Milestone
                  No milestone
                  Relationships
                  None yet
                  Development
                  No branches or pull requests
                  Issue actions
                  
, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Strip utm_, fbclid, gclid, etc. from all links on page\n(function() {\n var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',\n 'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',\n 'ref', 'ref_src', 'source', 'medium', 'campaign'];\n \n function cleanUrl(url) {\n try {\n var u = new URL(url, window.location.origin);\n var changed = false;\n trackingParams.forEach(function(p) {\n if (u.searchParams.has(p)) {\n u.searchParams.delete(p);\n changed = true;\n }\n });\n return changed ? u.toString() : url;\n } catch (e) {\n return url;\n }\n }\n \n function cleanLinks() {\n document.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n \n cleanLinks();\n \n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1) {\n if (node.tagName === 'A') cleanLinks();\n node.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Remove Tracking Parameters from Links");
}
} catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); }
})();
(function(){
try {
var __m = "youtube.com";
var __re = new RegExp('^' + "youtube\\.com" + '

                  Skip to content
                  Race condition in it_sidecar  #130
                  Open
                  Open
                  Race condition in it_sidecar #130
                  Description
                  @apesternikov
                  apesternikov
                  opened on Mar 22, 2023
                  @harjsing7 reported a race condition in a sidecar on pod removal.
                  2023-03-22T05:44:02Z | INFO | 2023/03/22 05:44:02 panic: close of closed channel
2023-03-22T05:44:02Z | INFO | 2023/03/22 05:44:02 2023-03-22T05:44:02Z | INFO | 2023/03/22 05:44:02 goroutine 108 [running]:
2023-03-22T05:44:02Z | INFO | 2023/03/22 05:44:02 github.com/adobe/rules_gitops/testing/it_sidecar/stern.(*Tail).Start.func2()
2023-03-22T05:44:02Z | INFO | 2023/03/22 05:44:02 external/com_adobe_rules_gitops/testing/it_sidecar/stern/tail.go:86 +0x45
2023-03-22T05:44:02Z | INFO | 2023/03/22 05:44:02 created by github.com/adobe/rules_gitops/testing/it_sidecar/stern.(*Tail).Start
2023-03-22T05:44:02Z | INFO | 2023/03/22 05:44:02 external/com_adobe_rules_gitops/testing/it_sidecar/stern/tail.go:84 +0x12b
2023-03-22T05:44:02Z | INFO | 2023/03/22 05:44:02 exit status 2

                  The closing of the channel can happen in two spots:
                  rules_gitops/testing/it_sidecar/stern/tail.go
                  
Line 86
in
eafc9c3
                  close(t.closed) 

                  rules_gitops/testing/it_sidecar/stern/main.go
                  
Line 56
in
eafc9c3
                  tails[id].Close() 
                  We need to handle this situation properly, using cancellable context would be appropriate here
                  
Also, we should add a warning in a log on pod deletion, since it is typically an indication of a problem in the test - like pod crashlooping or even early test failure (configurable)
                  Metadata
                  Metadata
                  Assignees
                  No one assigned
                    Labels
                    No labels
                    No labels
                    Type
                    No type
                    Projects
                    No projects
                      Milestone
                      No milestone
                      Relationships
                      None yet
                      Development
                      No branches or pull requests
                      Issue actions
                      
, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Auto-enable theater mode on YouTube\n(function() {\n function tryTheater() {\n var btn = document.querySelector('button[aria-label=\"Theater mode\"], ytd-player #player button[title=\"Theater mode\"]');\n if (btn && !btn.classList.contains('activated')) {\n btn.click();\n }\n }\n \n // Try immediately\n tryTheater();\n \n // Try after navigation (SPA)\n var lastUrl = location.href;\n setInterval(function() {\n if (location.href !== lastUrl) {\n lastUrl = location.href;\n setTimeout(tryTheater, 500);\n }\n }, 1000);\n \n // Also try on player load\n var observer = new MutationObserver(tryTheater);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "YouTube Theater Mode Default");
}
} catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

                      Skip to content
                      Race condition in it_sidecar  #130
                      Open
                      Open
                      Race condition in it_sidecar #130
                      Description
                      @apesternikov
                      apesternikov
                      opened on Mar 22, 2023
                      @harjsing7 reported a race condition in a sidecar on pod removal.
                      2023-03-22T05:44:02Z | INFO | 2023/03/22 05:44:02 panic: close of closed channel
2023-03-22T05:44:02Z | INFO | 2023/03/22 05:44:02 2023-03-22T05:44:02Z | INFO | 2023/03/22 05:44:02 goroutine 108 [running]:
2023-03-22T05:44:02Z | INFO | 2023/03/22 05:44:02 github.com/adobe/rules_gitops/testing/it_sidecar/stern.(*Tail).Start.func2()
2023-03-22T05:44:02Z | INFO | 2023/03/22 05:44:02 external/com_adobe_rules_gitops/testing/it_sidecar/stern/tail.go:86 +0x45
2023-03-22T05:44:02Z | INFO | 2023/03/22 05:44:02 created by github.com/adobe/rules_gitops/testing/it_sidecar/stern.(*Tail).Start
2023-03-22T05:44:02Z | INFO | 2023/03/22 05:44:02 external/com_adobe_rules_gitops/testing/it_sidecar/stern/tail.go:84 +0x12b
2023-03-22T05:44:02Z | INFO | 2023/03/22 05:44:02 exit status 2

                      The closing of the channel can happen in two spots:
                      rules_gitops/testing/it_sidecar/stern/tail.go
                      
Line 86
in
eafc9c3
                      close(t.closed) 

                      rules_gitops/testing/it_sidecar/stern/main.go
                      
Line 56
in
eafc9c3
                      tails[id].Close() 
                      We need to handle this situation properly, using cancellable context would be appropriate here
                      
Also, we should add a warning in a log on pod deletion, since it is typically an indication of a problem in the test - like pod crashlooping or even early test failure (configurable)
                      Metadata
                      Metadata
                      Assignees
                      No one assigned
                        Labels
                        No labels
                        No labels
                        Type
                        No type
                        Projects
                        No projects
                          Milestone
                          No milestone
                          Relationships
                          None yet
                          Development
                          No branches or pull requests
                          Issue actions
                          
, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Remove or un-stick sticky/fixed headers that block content\n(function() {\n function unstick() {\n document.querySelectorAll('header, nav, [role=\"banner\"], .header, .navbar, .sticky, .fixed-top, [style*=\"position: fixed\"], [style*=\"position:sticky\"]').forEach(function(el) {\n if (el.style.position === 'fixed' || el.style.position === 'sticky' || \n getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {\n el.style.position = 'static';\n el.style.top = 'auto';\n el.style.zIndex = 'auto';\n }\n });\n }\n \n unstick();\n \n var observer = new MutationObserver(unstick);\n observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });\n})();", "Kill Sticky Headers");
}
} catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

                          Skip to content
                          Race condition in it_sidecar  #130
                          Open
                          Open
                          Race condition in it_sidecar #130
                          Description
                          @apesternikov
                          apesternikov
                          opened on Mar 22, 2023
                          @harjsing7 reported a race condition in a sidecar on pod removal.
                          2023-03-22T05:44:02Z | INFO | 2023/03/22 05:44:02 panic: close of closed channel
2023-03-22T05:44:02Z | INFO | 2023/03/22 05:44:02 2023-03-22T05:44:02Z | INFO | 2023/03/22 05:44:02 goroutine 108 [running]:
2023-03-22T05:44:02Z | INFO | 2023/03/22 05:44:02 github.com/adobe/rules_gitops/testing/it_sidecar/stern.(*Tail).Start.func2()
2023-03-22T05:44:02Z | INFO | 2023/03/22 05:44:02 external/com_adobe_rules_gitops/testing/it_sidecar/stern/tail.go:86 +0x45
2023-03-22T05:44:02Z | INFO | 2023/03/22 05:44:02 created by github.com/adobe/rules_gitops/testing/it_sidecar/stern.(*Tail).Start
2023-03-22T05:44:02Z | INFO | 2023/03/22 05:44:02 external/com_adobe_rules_gitops/testing/it_sidecar/stern/tail.go:84 +0x12b
2023-03-22T05:44:02Z | INFO | 2023/03/22 05:44:02 exit status 2

                          The closing of the channel can happen in two spots:
                          rules_gitops/testing/it_sidecar/stern/tail.go
                          
Line 86
in
eafc9c3
                          close(t.closed) 

                          rules_gitops/testing/it_sidecar/stern/main.go
                          
Line 56
in
eafc9c3
                          tails[id].Close() 
                          We need to handle this situation properly, using cancellable context would be appropriate here
                          
Also, we should add a warning in a log on pod deletion, since it is typically an indication of a problem in the test - like pod crashlooping or even early test failure (configurable)
                          Metadata
                          Metadata
                          Assignees
                          No one assigned
                            Labels
                            No labels
                            No labels
                            Type
                            No type
                            Projects
                            No projects
                              Milestone
                              No milestone
                              Relationships
                              None yet
                              Development
                              No branches or pull requests
                              Issue actions
                              
, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Universal Dark Mode - works on any site\n(function() {\n var enabled = true;\n \n function applyDarkMode() {\n if (!enabled) return;\n \n // Create style element if it doesn't exist\n var style = document.getElementById('universal-dark-mode-style');\n if (!style) {\n style = document.createElement('style');\n style.id = 'universal-dark-mode-style';\n document.head.appendChild(style);\n }\n \n // Dark mode CSS - inverts colors but preserves images/video\n style.textContent = '\n /* Invert everything except media */\n html {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #1a1a2e !important;\n }\n \n /* Restore images, videos, iframes, canvas */\n img, video, iframe, canvas, svg, picture, [style*=\"background-image\"] {\n filter: invert(1) hue-rotate(180deg) !important;\n }\n \n /* Preserve specific elements that should not be inverted */\n .no-dark-mode, .no-dark-mode *,\n [data-theme=\"light\"], [data-theme=\"light\"],\n .ace_editor, .ace_editor *,\n .CodeMirror, .CodeMirror *,\n .monaco-editor, .monaco-editor *,\n .markdown-body pre, .markdown-body pre *,\n .highlight, .highlight *,\n pre code, pre code * {\n filter: none !important;\n }\n \n /* Fix common UI elements */\n .modal, .popup, .dropdown-menu, .tooltip, .popover {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #2d2d44 !important;\n border-color: #444 !important;\n }\n \n /* Scrollbars */\n ::-webkit-scrollbar { background: #1a1a2e !important; }\n ::-webkit-scrollbar-thumb { background: #444 !important; }\n ::-webkit-scrollbar-thumb:hover { background: #555 !important; }\n \n /* Selection */\n ::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ';\n }\n \n function removeDarkMode() {\n var style = document.getElementById('universal-dark-mode-style');\n if (style) style.remove();\n }\n \n // Toggle with Alt+Shift+D\n document.addEventListener('keydown', function(e) {\n if (e.altKey && e.shiftKey && e.key === 'D') {\n e.preventDefault();\n enabled = !enabled;\n if (enabled) {\n applyDarkMode();\n console.log('[Universal Dark Mode] Enabled');\n } else {\n removeDarkMode();\n console.log('[Universal Dark Mode] Disabled');\n }\n }\n });\n \n // Apply on load\n applyDarkMode();\n \n // Re-apply on dynamic content\n var observer = new MutationObserver(function(mutations) {\n if (enabled && !document.getElementById('universal-dark-mode-style')) {\n applyDarkMode();\n }\n });\n observer.observe(document.head, { childList: true });\n \n console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');\n})();", "Universal Dark Mode");
}
} catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); }
})();
})();

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                              Race condition in it_sidecar  #130
                              Open
                              Open
                              Race condition in it_sidecar #130
                              Description
                              @apesternikov
                              apesternikov
                              opened on Mar 22, 2023
                              @harjsing7 reported a race condition in a sidecar on pod removal.
                              2023-03-22T05:44:02Z | INFO | 2023/03/22 05:44:02 panic: close of closed channel
2023-03-22T05:44:02Z | INFO | 2023/03/22 05:44:02 2023-03-22T05:44:02Z | INFO | 2023/03/22 05:44:02 goroutine 108 [running]:
2023-03-22T05:44:02Z | INFO | 2023/03/22 05:44:02 github.com/adobe/rules_gitops/testing/it_sidecar/stern.(*Tail).Start.func2()
2023-03-22T05:44:02Z | INFO | 2023/03/22 05:44:02 external/com_adobe_rules_gitops/testing/it_sidecar/stern/tail.go:86 +0x45
2023-03-22T05:44:02Z | INFO | 2023/03/22 05:44:02 created by github.com/adobe/rules_gitops/testing/it_sidecar/stern.(*Tail).Start
2023-03-22T05:44:02Z | INFO | 2023/03/22 05:44:02 external/com_adobe_rules_gitops/testing/it_sidecar/stern/tail.go:84 +0x12b
2023-03-22T05:44:02Z | INFO | 2023/03/22 05:44:02 exit status 2

                              The closing of the channel can happen in two spots:
                              rules_gitops/testing/it_sidecar/stern/tail.go
                              
Line 86
in
eafc9c3
                              close(t.closed) 

                              rules_gitops/testing/it_sidecar/stern/main.go
                              
Line 56
in
eafc9c3
                              tails[id].Close() 
                              We need to handle this situation properly, using cancellable context would be appropriate here
                              
Also, we should add a warning in a log on pod deletion, since it is typically an indication of a problem in the test - like pod crashlooping or even early test failure (configurable)
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