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Posted to issues@trafficcontrol.apache.org by GitBox <gi...@apache.org> on 2022/10/17 14:30:37 UTC

[GitHub] [trafficcontrol] zrhoffman opened a new pull request, #7142: Run CDN in a Box for Developers services as unprivileged users

zrhoffman opened a new pull request, #7142:
URL: https://github.com/apache/trafficcontrol/pull/7142

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   Closes: #ISSUE
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   This PR makes it so that when the CDN in a Box for Developers services create new files (from `npm ci`, building debug binaries, creating Traffic Router DBs, etc.), the files are owned by the user who owns the repository directory, rather than being owned by root.
   <!-- **^ Add meaningful description above** --><hr/>
   
   ## Which Traffic Control components are affected by this PR?
   <!-- Please delete all components from this list that are NOT affected by this PR.
   Feel free to add the name of a tool or script that is affected but not on the list.
   -->
   - CDN in a Box - for Developers
   
   ## What is the best way to verify this PR?
   <!-- Please include here ALL the steps necessary to test your PR.
   If your PR has tests (and most should), provide the steps needed to run the tests.
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   1. Remove generated files and directories:
      ```shell
      rm -rf dev/traffic_router/db experimental/traffic-portal/node_modules traffic_monitor/__debug_bin traffic_ops/traffic_ops_golang/__debug_bin traffic_portal/node_modules
      ```
   2. Build the CDN in a Box for Developers:
      ```shell
      docker-compose build
      ```
   
   3. Start the Dev CiaB:
      ```shell
      docker-compose up
      ```
   4. Verify that the generated files and directories are owned by you
   ```shell
   ls -ld dev/traffic_router/db experimental/traffic-portal/node_modules traffic_monitor/__debug_bin traffic_ops/traffic_ops_golang/__debug_bin traffic_portal/node_modules
   ```
   and verify that those all are owned by you
   
   ## PR submission checklist
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   - [ ] This PR has documentation <!-- If not, please delete this text and explain why this PR does not need documentation. -->
   - [ ] This PR has a CHANGELOG.md entry <!-- A fix for a bug from an ATC release, an improvement, or a new feature should have a changelog entry. -->
   - [x] This PR **DOES NOT FIX A SERIOUS SECURITY VULNERABILITY** (see [the Apache Software Foundation's security guidelines](https://apache.org/security) for details)
   
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[GitHub] [trafficcontrol] ericholguin commented on a diff in pull request #7142: Run CDN in a Box for Developers services as unprivileged users

Posted by GitBox <gi...@apache.org>.
ericholguin commented on code in PR #7142:
URL: https://github.com/apache/trafficcontrol/pull/7142#discussion_r1018258352


##########
docker-compose.yml:
##########
@@ -33,8 +33,10 @@ services:
         ports:
             - 6443:443
             - 6444:6444
+        sysctls:
+            - net.ipv4.ip_unprivileged_port_start=0

Review Comment:
   Maybe should be changed to 23 so ssh port isnt exposed?



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[GitHub] [trafficcontrol] zrhoffman commented on a diff in pull request #7142: Run CDN in a Box for Developers services as unprivileged users

Posted by GitBox <gi...@apache.org>.
zrhoffman commented on code in PR #7142:
URL: https://github.com/apache/trafficcontrol/pull/7142#discussion_r1018267515


##########
docker-compose.yml:
##########
@@ -33,8 +33,10 @@ services:
         ports:
             - 6443:443
             - 6444:6444
+        sysctls:
+            - net.ipv4.ip_unprivileged_port_start=0

Review Comment:
   This isn't which ports are exposed, it's which ports a non-user is allowed to listen on.
   
   Docker itself [includes](https://github.com/moby/moby/pull/41030/files#diff-9f91bff23e0bd70d6429b63d9db2d8180d2e89cdb64db4fb3e10a96f74d36271R791-R793) `net.ipv4.ip_unprivileged_port_start = 0`, just not containerd yet.



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[GitHub] [trafficcontrol] zrhoffman commented on pull request #7142: Run CDN in a Box for Developers services as unprivileged users

Posted by GitBox <gi...@apache.org>.
zrhoffman commented on PR #7142:
URL: https://github.com/apache/trafficcontrol/pull/7142#issuecomment-1306334417

   Rebased onto master to get #7164


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[GitHub] [trafficcontrol] zrhoffman commented on a diff in pull request #7142: Run CDN in a Box for Developers services as unprivileged users

Posted by GitBox <gi...@apache.org>.
zrhoffman commented on code in PR #7142:
URL: https://github.com/apache/trafficcontrol/pull/7142#discussion_r1018267515


##########
docker-compose.yml:
##########
@@ -33,8 +33,10 @@ services:
         ports:
             - 6443:443
             - 6444:6444
+        sysctls:
+            - net.ipv4.ip_unprivileged_port_start=0

Review Comment:
   This isn't which ports are exposed, it's which ports a non-root user is allowed to listen on.
   
   Docker itself [includes](https://github.com/moby/moby/pull/41030/files#diff-9f91bff23e0bd70d6429b63d9db2d8180d2e89cdb64db4fb3e10a96f74d36271R791-R793) `net.ipv4.ip_unprivileged_port_start = 0`, just not containerd yet.



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[GitHub] [trafficcontrol] ocket8888 commented on a diff in pull request #7142: Run CDN in a Box for Developers services as unprivileged users

Posted by GitBox <gi...@apache.org>.
ocket8888 commented on code in PR #7142:
URL: https://github.com/apache/trafficcontrol/pull/7142#discussion_r1017140520


##########
dev/tpv2/run.sh:
##########
@@ -16,5 +16,24 @@
 set -o errexit
 
 cd "$TC/experimental/traffic-portal"
+
+user=tpv2
+uid="$(stat -c%u "$TC")"
+gid="$(stat -c%g "$TC")"
+if [[ "$(id -u)" != "$uid" ]]; then
+	for dir in "${TC}/.npm" .angular node_modules; do

Review Comment:
   this fails on fresh repo clones:
   ```
   tpv2_1            | stat: cannot statx '.angular': No such file or directory
   tpv2_1            | chown: cannot access '.angular': No such file or directory
   ```
   (and then the container crashes)



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[GitHub] [trafficcontrol] zrhoffman commented on pull request #7142: Run CDN in a Box for Developers services as unprivileged users

Posted by GitBox <gi...@apache.org>.
zrhoffman commented on PR #7142:
URL: https://github.com/apache/trafficcontrol/pull/7142#issuecomment-1311000307

   Oops, the condition checking if t3c's `run.sh` was being run as root was always checking the unprivileged user's UID instead. Fixed in 0150a22289


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[GitHub] [trafficcontrol] ocket8888 commented on pull request #7142: Run CDN in a Box for Developers services as unprivileged users

Posted by GitBox <gi...@apache.org>.
ocket8888 commented on PR #7142:
URL: https://github.com/apache/trafficcontrol/pull/7142#issuecomment-1292273358

   This is something I've wanted for the dev environment since its inception, but I can't test it because of a bug in the TP/TPv2 containers that prevents them from fetching a resource from npm. I've had another developer confirm that the issue is not specific to my machine, but I still have no idea why that's happening.


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[GitHub] [trafficcontrol] zrhoffman commented on a diff in pull request #7142: Run CDN in a Box for Developers services as unprivileged users

Posted by GitBox <gi...@apache.org>.
zrhoffman commented on code in PR #7142:
URL: https://github.com/apache/trafficcontrol/pull/7142#discussion_r1017158790


##########
dev/tpv2/run.sh:
##########
@@ -16,5 +16,24 @@
 set -o errexit
 
 cd "$TC/experimental/traffic-portal"
+
+user=tpv2
+uid="$(stat -c%u "$TC")"
+gid="$(stat -c%g "$TC")"
+if [[ "$(id -u)" != "$uid" ]]; then
+	for dir in "${TC}/.npm" .angular node_modules; do

Review Comment:
   Checking if the directory exists first in ec0651f0e2



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[GitHub] [trafficcontrol] ocket8888 merged pull request #7142: Run CDN in a Box for Developers services as unprivileged users

Posted by GitBox <gi...@apache.org>.
ocket8888 merged PR #7142:
URL: https://github.com/apache/trafficcontrol/pull/7142


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