Use debian instead of ubuntu

See merge request openappstack/bootstrap!53

Resolve "Remove keycloak from CI pipeline"

Closes #117

See merge request openappstack/bootstrap!57

Deploy OAS apps to dedicated namespaces

See merge request openappstack/bootstrap!46

Allow production le certs

Closes #91

See merge request openappstack/bootstrap!49

Point to online docs from README.md

Closes #18

See merge request openappstack/bootstrap!44

Use artifacys instead of cache

Closes #98

See merge request openappstack/bootstrap!50

Wait up to 30 mins for LE cert

See merge request openappstack/bootstrap!45

Sometime fetching LE certs take up to 23mins,
see https://code.greenhost.net/openappstack/bootstrap/issues/90#note_48508

Fixes #98

Fix bootstrapping with ansible 2.6.x

Closes #103

See merge request openappstack/bootstrap!48

Resolve "Optionally support flexvolume storage plugins"

Closes #93

See merge request openappstack/bootstrap!40

Resolve "realm.json should have kind `ConfigMap`"

Closes #95

See merge request openappstack/bootstrap!41

Require minimal ansible version

Closes #97

See merge request openappstack/bootstrap!43

Bash completion for kubectl and helm

Closes #79

See merge request openappstack/bootstrap!37

Closes #97