Overriding bootnode config param using default format in .env file leads to parsing error

[rvcryp]

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Summary

This relates to docker-compose setup and specifically addresses the config in the .env file. The default bootnode address for testnet is not correct (identified earlier in #2437 and solved in master). If, however, in release 1.1.0 you want to override the currently incorrect bootnode address for testnet by using/adapting the default shown in the comment in the .env file ('default [/dnsaddr/boot.node.ethswarm.org]') it leads to a parsing error when starting the bee node.

Steps to reproduce

Start a fresh new node. Open .env file for a docker-compose setup, uncomment the BEE_BOOTNODE config line and enter the corrected default boot node address in the way suggested in the comments of the file: BEE_NODE=[/dnsadr/testnode.ethswarm.org]. Make sure log file is at least 'debug' and start the bee node

Expected behavior

Expected the bee to discover the bootnodes and start connecting to peers

Actual behavior

The bee continued to log that it had no peers and was trying the bootnodes. Before that, the log file indicated a parsing error: level=debug msg="multiaddress fail [/dnsaddr/testnet.ethswarm.org]: failed to parse multiaddr "[/dnsaddr/testnet.ethswarm.org]": must begin with /". Tried to also enter is as BEE_BOOTNODE="[/dnsaddr/testnet.ethswarm.org]", but that did not work either. Eventually it worked by not making it multiaddr, but just simply BEE_BOOTNODE=/dnsaddr/testnet.ethswarm.org. Maybe special characters are not correctly parsed/escaped?

[ldeffenb]

I suspect you need quotes inside and outside the []. Not sure the proper syntax, but something like:

BEE_BOOTNODE="['/dnsaddr/testnet.ethswarm.org']"
BEE_BOOTNODE="[""/dnsaddr/testnet.ethswarm.org""]"
BEE_BOOTNODE="["/dnsaddr/testnet.ethswarm.org"]"

[acud]

closing this as this appears to be related to user-error and there's no actionable item here