curl with http2

[dizews]

Hello.
What do you think to include http2 for curl into docker images?

for example:
Some services like a new Apple Push Notification Service needs to work on this mode

[tianon]

From https://curl.haxx.se/docs/http2.html:

Since 7.47.0, the curl tool enables HTTP/2 by default for HTTPS connections.

$ docker pull php:7.2
7.2: Pulling from library/php
Digest: sha256:6ead5fbf0a6df6e4f6e75ad92f442adedb4c54a36beb390a86f5baa14fb95c48
Status: Image is up to date for php:7.2

$ docker run -it --rm php:7.2 curl --version
curl 7.52.1 (x86_64-pc-linux-gnu) libcurl/7.52.1 OpenSSL/1.0.2l zlib/1.2.8 libidn2/0.16 libpsl/0.17.0 (+libidn2/0.16) libssh2/1.7.0 nghttp2/1.18.1 librtmp/2.3
Protocols: dict file ftp ftps gopher http https imap imaps ldap ldaps pop3 pop3s rtmp rtsp scp sftp smb smbs smtp smtps telnet tftp 
Features: AsynchDNS IDN IPv6 Largefile GSS-API Kerberos SPNEGO NTLM NTLM_WB SSL libz TLS-SRP HTTP2 UnixSockets HTTPS-proxy PSL 

[dizews]

Good news. I've used php:7.1 this image does not have http2 by default

[tianon]

Ah, then that's probably due to #504.

[dizews]

if so, I'll close this issue.

Thanks.