This option allows users to suspend execution of the cloud-init provisioning
until a valid network is detected.
This detection is currently done through requesting a DNS lookup for one
of the Clear Linux NTP service IP addresses (this is a RR record, we
don't actually look at the result).
This lookup is not infinite. After 5 minutes, the wait exits no matter
what even if there is no network detected.
The option can be provided manually. `packages` and `package_upgrade`
options *imply* this option, but one can explicitly disable the wait
by providing it early in the cloud-config file with a value of `false`.
The wait routing is active - it will retry relatively quickly to detect
an active connection. Any failure will result in another retry. In
a fully private network without public DNS, this will not work.
The DNS hostname used for testing can be manipulated through the
`-with-dnstestaddr=<hostname>` configure flag. You shouldn't put an
IP address in here, since that fully disables any network testing.
* Make -Werror a compile time option
Signed-off-by: Ikey Doherty <michael.i.doherty@intel.com>
* Ensure test suite builds with -Wl,--as-needed
The linking order is highly important to libtool. Previously we would link
the COMMON_LDADD libraries to the binaries, however no symbols were used so
binutils linker wouldn't link the libraries involved. Next we would link
libtest.la, a static convenience library, and fail at dynamic linking due
to the symbols only being used in this later-added libraries.
The solution is to first link the convenience library, and then link to the
shared libraries, in order for -Wl,--as-needed behaviour to function correctly
and only link the absolutely required libraries.
Signed-off-by: Ikey Doherty <michael.i.doherty@intel.com>
Auke Kok