Re: [libvirt] [sandbox PATCH] allow to use a templated unit in virt-sandbox

This permit to create a templated unit inside the sandbox, using the sandbox name as a variable and so running the same unit with a different configuration without too much hassle. For example, someone could have several different configuration of website in /etc/nginx/websites.d/ and have each of them started in a different sandbox, with a sample templated unit using the sandbox name as a option to read the proper configuration file directly. --- bin/virt-sandbox-service | 20 +++++++++++++++++--- 1 file changed, 17 insertions(+), 3 deletions(-) diff --git a/bin/virt-sandbox-service b/bin/virt-sandbox-service index 2096be1..0d89b54 100755 --- a/bin/virt-sandbox-service +++ b/bin/virt-sandbox-service @@ -345,6 +345,10 @@ class GenericContainer(Container): def set_command(self, command): self.config.set_command(command) + +def is_template_unit(unit): + return '@' in unit + class SystemdContainer(Container): IGNORE_DIRS = [ "/var/run/", "/etc/logrotate.d/", "/etc/pam.d" ] DEFAULT_DIRS = [ "/etc", "/var" ] @@ -624,14 +628,22 @@ WantedBy=%(TARGET)s source = "%s%s" % ( self.dest, d) self.add_bind_mount(source, d) + def get_expanded_unit_template(self, unit): + return unit.replace('@', '@' + self.name) + def create_container_unit(self, src, dest, unit): - fd = open(dest + "/" + unit, "w") - fd.write(""".include %s + if is_template_unit(unit): + expanded_unit_name = self.get_expanded_unit_template(unit) + os.symlink(src, dest + "/" + expanded_unit_name) + shutil.copy(src, dest + "/" + unit) + else: + fd = open(dest + "/" + unit, "w") + fd.write(""".include %s [Service] PrivateTmp=false PrivateNetwork=false """ % src ) - fd.close() + fd.close()