CLI start with multiple VCL on Varnish 6 Failed.

[BIGOT Adrien]

Hello,

Based on this blog article : 
https://info.varnish-software.com/blog/one-vcl-per-domain   I've been 
using multiple VCL with Varnish 5.2 without any problem.
However, I don't manage to get it working with Varnish 6.

I tried with the latest stable version on packagecloud.io and even with 
the latest weekly-build.
Tested on Debian Strecth, Ubuntu 16.04 and Centos 7.


[root at ip-172-31-137-19 varnish]# varnishd -I start.cli -F -a :80 -f ''
Debug: Version: varnish-6.0.1 revision 
8d54bec5330c29304979ebf2c425ae14ab80493c
Debug: Platform: 
Linux,3.10.0-862.3.2.el7.x86_64,x86_64,-junix,-sdefault,-sdefault,-hcritbit
BEGIN of -I file processing
200 326
-----------------------------
Varnish Cache CLI 1.0
-----------------------------
Linux,3.10.0-862.3.2.el7.x86_64,x86_64,-junix,-sdefault,-sdefault,-hcritbit
varnish-6.0.1 revision 8d54bec5330c29304979ebf2c425ae14ab80493c

Type 'help' for command list.
Type 'quit' to close CLI session.
Type 'start' to launch worker process.

 > vcl.load vcl-api-orig /etc/varnish/api.vcl
200 14
VCL compiled.

 > vcl.load vcl-catz-orig /etc/varnish/catz.vcl
200 14
VCL compiled.

 > vcl.label label-api vcl-api-orig
200 0

 > vcl.label label-catz vcl-catz-orig
200 0

 > vcl.load vcl-root-orig /etc/varnish/root.vcl
200 14
VCL compiled.

 > vcl.use vcl-root-orig
200 30
VCL 'vcl-root-orig' now active
END of -I file processing
CLI result = 400



In the logs :

On Centos
sept. 18 08:35:37 ip-172-31-137-19.xxxxxxxxxxxxxxxxxx su[11820]: 
pam_unix(su:session): session opened for user root by ec2-user(uid=0)
sept. 18 08:36:34 ip-172-31-137-19.xxxxxxxxxxxxxxxxxx varnishd[11846]: 
Version: varnish-6.0.1 revision 8d54bec5330c29304979ebf2c425ae14ab80493c
sept. 18 08:36:34 ip-172-31-137-19.xxxxxxxxxxxxxxxxxx varnishd[11846]: 
Platform: 
Linux,3.10.0-862.3.2.el7.x86_64,x86_64,-junix,-sdefault,-sdefault,-hcritbit
sept. 18 08:36:34 ip-172-31-137-19.xxxxxxxxxxxxxxxxxx varnishd[11846]: 
CLI -I file Rd vcl.load vcl-api-orig /etc/varnish/api.vcl
sept. 18 08:36:34 ip-172-31-137-19.xxxxxxxxxxxxxxxxxx varnishd[11846]: 
CLI -I file Wr 200 VCL compiled.
sept. 18 08:36:34 ip-172-31-137-19.xxxxxxxxxxxxxxxxxx varnishd[11846]: 
CLI -I file Rd vcl.load vcl-catz-orig /etc/varnish/catz.vcl
sept. 18 08:36:34 ip-172-31-137-19.xxxxxxxxxxxxxxxxxx varnishd[11846]: 
CLI -I file Wr 200 VCL compiled.
sept. 18 08:36:34 ip-172-31-137-19.xxxxxxxxxxxxxxxxxx varnishd[11846]: 
CLI -I file Rd vcl.label label-api vcl-api-orig
sept. 18 08:36:34 ip-172-31-137-19.xxxxxxxxxxxxxxxxxx varnishd[11846]: 
CLI -I file Wr 200
sept. 18 08:36:34 ip-172-31-137-19.xxxxxxxxxxxxxxxxxx varnishd[11846]: 
CLI -I file Rd vcl.label label-catz vcl-catz-orig
sept. 18 08:36:34 ip-172-31-137-19.xxxxxxxxxxxxxxxxxx varnishd[11846]: 
CLI -I file Wr 200
sept. 18 08:36:34 ip-172-31-137-19.xxxxxxxxxxxxxxxxxx varnishd[11846]: 
CLI -I file Rd vcl.load vcl-root-orig /etc/varnish/root.vcl
sept. 18 08:36:34 ip-172-31-137-19.xxxxxxxxxxxxxxxxxx varnishd[11846]: 
CLI -I file Wr 200 VCL compiled.
sept. 18 08:36:34 ip-172-31-137-19.xxxxxxxxxxxxxxxxxx varnishd[11846]: 
CLI -I file Rd vcl.use vcl-root-orig
sept. 18 08:36:34 ip-172-31-137-19.xxxxxxxxxxxxxxxxxxm varnishd[11846]: 
CLI -I file Wr 200 VCL 'vcl-root-orig' now active
sept. 18 08:36:34 ip-172-31-137-19.xxxxxxxxxxxxxxxxxx varnishd[11846]: 
Child (11870) Started
sept. 18 08:36:34 ip-172-31-137-19.xxxxxxxxxxxxxxxxxx varnishd[11846]: 
Child (11870) not responding to CLI, killed it.
sept. 18 08:36:34 ip-172-31-137-19.xxxxxxxxxxxxxxxxxx varnishd[11846]: 
Child (11870) Pushing vcls failed:
CLI communication error
sept. 18 08:36:34 ip-172-31-137-19.xxxxxxxxxxxxxxxxxx varnishd[11846]: 
Stopping Child
sept. 18 08:36:35 ip-172-31-137-19.xxxxxxxxxxxxxxxxxxm varnishd[11846]: 
Child (11870) died signal=3
sept. 18 08:36:35 ip-172-31-137-19.xxxxxxxxxxxxxxxxxx varnishd[11846]: 
Child cleanup complete

On Debian :
Sep 18 10:07:01 ip-172-31-137-84 varnishd[6783]: Child (6809) said Child 
starts
Sep 18 10:07:01 ip-172-31-137-84 varnishd[6783]: Child cleanup complete
Sep 18 10:07:02 ip-172-31-137-84 varnishd[6816]: Version: varnish-6.0.1 
revision 8d54bec5330c29304979ebf2c425ae14ab80493c
Sep 18 10:07:02 ip-172-31-137-84 varnishd[6816]: Platform: 
Linux,4.9.0-8-amd64,x86_64,-junix,-sdefault,-sdefault,-hcritbit
Sep 18 10:07:02 ip-172-31-137-84 varnishd[6816]: CLI -I file Rd vcl.load 
vcl-api-orig /etc/varnish/api.vcl
Sep 18 10:07:03 ip-172-31-137-84 varnishd[6816]: CLI -I file Wr 200 VCL 
compiled.
Sep 18 10:07:03 ip-172-31-137-84 varnishd[6816]: CLI -I file Rd vcl.load 
vcl-catz-orig /etc/varnish/catz.vcl
Sep 18 10:07:03 ip-172-31-137-84 varnishd[6816]: CLI -I file Wr 200 VCL 
compiled.
Sep 18 10:07:03 ip-172-31-137-84 varnishd[6816]: CLI -I file Rd 
vcl.label label-api vcl-api-orig
Sep 18 10:07:03 ip-172-31-137-84 varnishd[6816]: CLI -I file Wr 200
Sep 18 10:07:03 ip-172-31-137-84 varnishd[6816]: CLI -I file Rd 
vcl.label label-catz vcl-catz-orig
Sep 18 10:07:03 ip-172-31-137-84 varnishd[6816]: CLI -I file Wr 200
Sep 18 10:07:03 ip-172-31-137-84 varnishd[6816]: CLI -I file Rd vcl.load 
vcl-root-orig /etc/varnish/root.vcl
Sep 18 10:07:03 ip-172-31-137-84 varnishd[6816]: CLI -I file Wr 200 VCL 
compiled.
Sep 18 10:07:03 ip-172-31-137-84 varnishd[6816]: CLI -I file Rd vcl.use 
vcl-root-orig
Sep 18 10:07:03 ip-172-31-137-84 varnishd[6816]: CLI -I file Wr 200 VCL 
'vcl-root-orig' now active
Sep 18 10:07:03 ip-172-31-137-84 varnishd[6816]: Child (6842) Started
Sep 18 10:08:03 ip-172-31-137-84 varnishd[6816]: Child (6842) not 
responding to CLI, killed it.
Sep 18 10:08:03 ip-172-31-137-84 varnishd[6816]: Child (6842) Pushing 
vcls failed:
                                                  CLI communication 
error (hdr)
Sep 18 10:08:03 ip-172-31-137-84 varnishd[6816]: Stopping Child
Sep 18 10:08:04 ip-172-31-137-84 varnishd[6816]: Child (6842) died signal=3


Did anyone manage to get it working with varnish 6 ?

Thank you.

Best regards,

-- 

Bigot Adrien