cli: implement cluster worker publish command#1277
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@TarantoolBot document Title: `tt cluster worker publish` implementation Implement `tt cluster worker publish` command for publishing worker configurations to etcd or tarantool config storage (TCS). The command accepts a URL with format: ``` http(s)://[username:password@]host:port/prefix/host-name/worker-name ``` * prefix - a base path to the worker configuration. * host-name - a name of the host. * worker-name - a name of the worker. Possible arguments: * timeout - a request timeout in seconds (default 3.0). * ssl_key_file - a path to a private SSL key file. * ssl_cert_file - a path to an SSL certificate file. * ssl_ca_file - a path to a trusted certificate authorities (CA) file. * ssl_ca_path - a path to a trusted certificate authorities (CA) directory. * ssl_ciphers - a list of allowed SSL ciphers. * verify_host - set off (default true) verification of the certificate’s name against the host. * verify_peer - set off (default true) verification of the peer’s SSL certificate. The command supports the following environment variables: * TT_CLI_USERNAME - specifies a Tarantool username; * TT_CLI_PASSWORD - specifies a Tarantool password. * TT_CLI_ETCD_USERNAME - specifies a Etcd username; * TT_CLI_ETCD_PASSWORD - specifies a Etcd password. The priority of credentials: environment variables < command flags < URL credentials. Usage: ``` tt cluster worker publish <URI> <FILE> ``` Supported flags: --force force publish and skip checking existence -h, --help help for publish -p, --password string password (used as etcd/tarantool config storage credentials) -u, --username string username (used as etcd/tarantool config storage credentials) Example: ``` tt cluster worker publish \ https://user:pass@localhost:2379/cluster/workers/host/server-1 \ worker.yaml ``` The implementation uses go-storage library for both etcd and TCS. Without --force flag, it checks if the key already exists before publishing. Due to go-storage limitations (no "count" predicate support), this check is done via two separate transactions with a potential race condition. Closes TNTP-7062
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@TarantoolBot document
Title:
tt cluster worker publishimplementationImplement
tt cluster worker publishcommand for publishing worker configurations to etcd or tarantool config storage (TCS). The command accepts a URL with format:Possible arguments:
The command supports the following environment variables:
The priority of credentials:
environment variables < command flags < URL credentials.
Usage:
Supported flags:
Example:
The implementation uses go-storage library for both etcd and TCS. Without --force flag, it checks if the key already exists before publishing. Due to go-storage limitations (no "count" predicate support), this check is done via two separate transactions with a potential race condition.
Closes TNTP-7062