feat(kitchen): use stable for amazonlinux-1 bootstrap

* saltstack-formulas/vault-formula#50 (comment)
* saltstack-formulas/vault-formula#50 (comment)
* https://github.com/orgs/saltstack-formulas/teams/wg/discussions/13

ssf/defaults.yaml

@@ -22,8 +22,8 @@ ssf_node_anchors:
             #       An alternative method could be to use:
             #       `git describe --abbrev=0 --tags`
             # yamllint disable rule:line-length
-            title: 'ci(kitchen+travis+inspec): add `vimrc` suite'
-            body: '* Automated using https://github.com/myii/ssf-formula/pull/91'
+            title: 'ci(kitchen): use `stable` for `amazonlinux-1` bootstrap [skip ci]'
+            body: '* Automated using https://github.com/myii/ssf-formula/pull/95'
             # yamllint enable rule:line-length
           github:
             owner: 'saltstack-formulas'

ssf/files/default/kitchen.yml

@@ -76,8 +76,12 @@ image: netmanagers/salt-{{ salt_ver }}-py{{ py_ver }}:{{ os | replace('/', '-')
 {%-       endif %}
 {#-       Use the appropriate bootstrap options for pre-salted images vs. bootstrapped images #}
 {%-       set bootstrap_options = 'XdPbfrq' if pre_salted else 'XdPfq' %}
+{#-       Use the appropriate bootstrap method depending on the Salt version #}
+{%-       set bootstrap_method = 'git' if salt_ver in ['master', 'develop'] else 'stable' %}
 {%-       do prov_cmds.append('- curl -o bootstrap-salt.sh -L https://bootstrap.saltstack.com') %}
-{%-       do prov_cmds.append('- sh bootstrap-salt.sh -{0} -x python{1} git {2}'.format(bootstrap_options, py_ver, salt_ver)) %}
+{%-       do prov_cmds.append('- sh bootstrap-salt.sh -{0} -x python{1} {2} {3}'.format(
+              bootstrap_options, py_ver, bootstrap_method, salt_ver
+          )) %}
 {#-       Add formula-specific provision commands #}
 {%-       if semrel_formula == 'deepsea' %}
 {%-         if os in ['centos', 'fedora'] %}